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  1. #1
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    New Bontrager XR4 team issue 29 x 2.6

    Picked up a pair yesterday! Weights were 940g and 954g, not XC racers, but neither am I!
    Bead to Bead measurement brand new was 162mm.
    Mounted them up last night on i30mm rims and inflated to about 40psi. This morning they measured out to....
    Front 2.582 in/65.65mm casing and 2.668 in/67.57mm tread
    Rear 2.598 in/66.05mm casing and 2.664 in/67.54mm tread

    Very happy the tread sticks out past the casing a bit! They're on a 2017 FEX 8 and I wouldn't go any bigger on the rear. The left seatstay only has 5-6mm clearance. They look amazing! Can't wait to dial in pressures and hit the trail!

  2. #2
    Nat
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    Is your camera broken or what the heck?

  3. #3
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    I haven't posted pics since Photobucket decided to start charging to share pics. I'll see what I can do later. Working now.

  4. #4
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    New Bontrager XR4 team issue 29 x 2.6-20180201_170644_lls.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180201_170959_lls.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180201_171028_lls.jpg

  5. #5
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    New Bontrager XR4 team issue 29 x 2.6-20180202_172449.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180202_172609_lls.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180202_172504.jpg
    Getting snug!

  6. #6
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    New Bontrager XR4 team issue 29 x 2.6-20180202_172626_lls.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180202_172653_lls.jpg
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  7. #7
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    New Bontrager XR4 team issue 29 x 2.6-20180202_172705_lls.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180202_172734_lls.jpg
    They are beasts! Hope they don't get any bigger....

  8. #8
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    Hope they are released in 26"!

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    Just went out and aired them down to 20/22 so they won't stretch any more!
    So, anyone with a 17-18 FEX wondering if a 2.8 29er will fit...I'd say NO!
    Unless they measure small anyway.

  10. #10
    Nat
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    So fat!

  11. #11
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    2.4 tire for comparison. The 2.6 are a lot taller too.
    New Bontrager XR4 team issue 29 x 2.6-20180201_171253.jpg

  12. #12
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    Quote Originally Posted by Nat View Post
    So fat!
    I'm hoping they're the 'sweet spot', nice cush and lots of traction w/o any undamped rebound. We'll see....

  13. #13
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    I just bought a pair for my Fuel EX 9.8 (2017). Won't install them for a few days, but I'm looking forward to trying them. BTW, they look great on your bike!

  14. #14
    Nat
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    I canít wait to hear your impressions of them.

  15. #15
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    I think Iíve just found my next tyre!


    Sent from my iPhone using Tapatalk Pro

  16. #16
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    Hmm. Might have to get one for a front tire.

  17. #17
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    Quote Originally Posted by Schulze View Post
    Hope they are released in 26"!
    I think the chances of trek paying to cut a 26" mold for these is less than 1%

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    I picked up a set of 2.6 and 2.3 XR4 for my mid-travel 29er. I am second guessing myself as to whether I should have just gone with a set Minions. I wanted something with better braking and cornering tread then the Recon+ for when I switch to 29er mode. When I got the XR4's home the look very similar to the Recon tread pattern. The nobs are perhaps a little taller and the transition nobs a little bigger. I imagine they should roll a lot better than Minions though.

    The shop btw had a bunch of XR4 2.8 which will be my next 27.5+ tire once the Recon+ wear out(or get a sidewall cut ). The 2.8 looked beefier to me and are a lot less expensive than Recons.

  19. #19
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    Can't believe you guys didn't notice the rear tire was mounted backwards! Just finished flipping it around. Was easier to mount this time since it loosened up some. Easily seated the bead with a floor pump.
    Had too much stuff to do yesterday and it rained /snowed and warmed up again today. Trails closed.....Dayum!

  20. #20
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    Got the 27x3 out and snapped a couple pics for comparison. Kinda deceiving though, the 27x3 is actually quite a bit wider; 75mm at the knobs. 29er's are a lot taller though!
    New Bontrager XR4 team issue 29 x 2.6-20180204_111154.jpg
    New Bontrager XR4 team issue 29 x 2.6-20180204_111221.jpg

  21. #21
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    Quote Originally Posted by not2shabby View Post
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    They are beasts! Hope they don't get any bigger....
    Wow, those tires look awesome. They look better than the 29x2.6 Nic's I was about to buy. Did you happen to measure their width and/or height at riding pressure?

  22. #22
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    Sitting at 22/20 psi for over 24 hours in a cold garage and they shrunk down about a mm on all previous measurements. No ride time at all though.

  23. #23
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    Opps, forgot, I stuck a yardstick behind the rear wheel. Just a bit over 291/2 inches tall by my highly scientific measurement!

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    Quote Originally Posted by not2shabby View Post
    Opps, forgot, I stuck a yardstick behind the rear wheel. Just a bit over 291/2 inches tall by my highly scientific measurement!
    Thanks for checking bruddah. Loving the sounds of these tires. Went to order some and noticed they're out of stock already - must be good stuff!

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    Got home a bit before dark and there's some snow left from a squall that passed through last night so I took a little buzz up and down the sidewalk and around the yard. Let some air out till they felt a little squishy and they had good traction in the inch or so of snow. I almost did an endo before the front tire started sliding on the sidewalk!
    Did a few wheelies out in the street and it seems like it's a bit harder to loft the front end. IIRC, the B+ tires were about 100 grams lighter each. Could be the low air pressure, cold and slight change of gearing with taller tires were factors too. And I didn't flip the shock to firm like usual.
    I sooooo want to get to the trail!
    New Bontrager XR4 team issue 29 x 2.6-20180205_175142_lls.jpg

  26. #26
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    Quote Originally Posted by AspiringXCGuy View Post
    Thanks for checking bruddah. Loving the sounds of these tires. Went to order some and noticed they're out of stock already - must be good stuff!
    No problem! Wow, already OOS! Glad I went ahead and ordered when I did.

  27. #27
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    OOS means you need your shop to get on the order list for you now for the next shipment. Shop orders will fill before the website shows in stock.

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    Took another spin tonight before it got dark and went behind the strip mall where there's a hill built around the edge of the parking lot and off camber grip was very good with a dusting of snow on the grass. I'd say about as good as the 27x3's w/o really dialing in air pressure. There was snow/ice crust in the parking lot and they stuck well there too. Of course I wasn't cornering hard or going fast, but they felt confident pedaling over it.
    Got home and checked the pressures and was at 13f/14r. Lower than I thought. Tires still felt pretty firm by the hand squeeze method. Thinking I'll try 15f/17-18r when I get to the trail and adjust from there. Sound reasonable for 180lb rider? I run 12f/14r on the 27x3's and get no rim strikes or squirminess.

  29. #29
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    Thanks for posting this! Very helpful information.

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    The weight of my XR4 2.6 came in at 942g. For comparison a XR4 2.3 came in as 770g. I also include a picture of the 2.6 on a 30mm internal rim compared to Rekon 27.5 2.8 tire on a 40mm rim. The pattern is pretty similar, the XR4 knobs seem a little taller and the tire is almost as wide. I may return the 2.3 if I can locate a 2.4 XR4 in stalk, I don't think a 2.6 will fit in the rear of my Hightower.
    Attached Thumbnails Attached Thumbnails New Bontrager XR4 team issue 29 x 2.6-img_3589.jpg  

    New Bontrager XR4 team issue 29 x 2.6-img_3587.jpg  

    New Bontrager XR4 team issue 29 x 2.6-img_3586.jpg  


  31. #31
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    We got about 4 inches of snow Tuesday night and I went for a spin Wednesday after work after setting pressure to 8f/10r just for giggles. It ain't no fat bike, but it did pretty good until I burped the back tire and it went flat! Pulled back in the garage and checked pressure; according to the guage it was 0, but the sidewall was stiff enough to not look flat under just the weight of the bike. I pumped it back up to rock hard thinking the bead needed reseating but never heard a pop. It was still rock hard this morning.

  32. #32
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    So 29x2.6 XR4 weighs about 950g. 29x2.5WT 3C Minion DHF weight 1005g. As a front tire, I don't see much of a benefit with going with the XR4 as the DHF's roll pretty well also.

  33. #33
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    Quote Originally Posted by bmwzimmer View Post
    So 29x2.6 XR4 weighs about 950g. 29x2.5WT 3C Minion DHF weight 1005g. As a front tire, I don't see much of a benefit with going with the XR4 as the DHF's roll pretty well also.
    Cheaper and in stock.

  34. #34
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    DHF has better grip and more durable. Its won numerous races and is well proven. Just cant understand why youd bother with the XR4. If it was 850gish like the nobby nic 2.6 tires i would see a benefit but not when its this close in weight to a DHF

  35. #35
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    As I said, DHF 29 2.5 3c is out of stock everywhere, or I may be riding one. It is much easier to ride a tire in hand than one available in 10-14 days. That being said, the Minion and the XR4 are fairly different tires. The XR4 is much bigger with a rounder profile, and lower rolling resistance. The DHF is stiffer with bigger knobs.

    The 2.4 SE4 or SE5 would be more comparable to the DHF. The XR4 is closer to the Aggressor or maybe the Rekon from the Maxxis line.

  36. #36
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    Sorry I thought you meant the XR4 2.6's are out of stock everywhere since it's a brand new tire that most dealers don't stock. I just bought 4 at Jensons yesterday. I called and they have about 46 left as of this morning.
    Maxxis Minion DHF Exo 3C 29" Tire | Jenson USA

  37. #37
    JGL
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    Quote Originally Posted by not2shabby View Post
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    They are beasts! Hope they don't get any bigger....
    I got about 300 miles out of a 2.6 Nobby Nic (Scott Genius) before it started rubbing under torque. Was bummed. Still have one on the front though.

  38. #38
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    The 2.6 is out?!

    **Boing**
    "Go soothingly in the grease mud, as there lurks the skid demon"

  39. #39
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    Quote Originally Posted by c_trail_biker View Post
    For comparison a XR4 2.3 came in as 770g.
    The pic of that tire is confusing me. 2.3 with the new logo, but old tread pattern? And 2.3 wasn't even listed as an option any more, last I looked. Wonder what's up with that...

  40. #40
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    Are you guys finding a lot of rolling resistance when using an XR4 as a rear tire with the new thread? The old thread was a bit better rolling. I usually run a DHF/DHRII combo and decided to put a XR4 2.4 TI in the back because it was only 790 compared to 950 for the DHRII and although lighter, i felt it rolled slightly worse and therefore negating the benefit of a lighter tire.
    I had actually purchased a 2.6 XR4 to pair with the 2.4 rear but the weight of the 2.6 was so close to a DHF i have decided to not bother. Iíll stick to a DHF/DHR until the spring where iíll try out the 2.4/2.6 XR4 combo

  41. #41
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    Quote Originally Posted by c_trail_biker View Post
    The weight of my XR4 2.6 came in at 942g. For comparison a XR4 2.3 came in as 770g. I also include a picture of the 2.6 on a 30mm internal rim compared to Rekon 27.5 2.8 tire on a 40mm rim. The pattern is pretty similar, the XR4 knobs seem a little taller and the tire is almost as wide. I may return the 2.3 if I can locate a 2.4 XR4 in stalk, I don't think a 2.6 will fit in the rear of my Hightower.
    Do you mind checking exactly how much less it is compared to reckon. Just as reference for my fitting.

    Also is volume of tire much less on the XR4

  42. #42
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    Looking at running the 2.6 XR4 front with a 2.4 XR3 rear on my HT. Anymore reports on how the 2.6 XR4 is?
    Patrick

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    I ran it in the front for about a week. 2.4 XR4 out back, 2.6 XR4 up front on 35mm IBIS 942 wheels. Traction feels 90% as good as a 2.5 Minion DHF but I think the DHF rolls slightly better. The DHF was about 50g or so heavier (2.5WT EXO 3C). The compound on the XR4 feels slightly softer though. It is finally starting to rain once every other week here in southern California so I decided to put 2.5/2.5 DHF's for better mud shedding and man I think it is a better combo in almost every aspect except. I honestly think rolling resistance on XR4's is not as good as DHF. My climbs for some reason are slightly faster despite the heavier tires.

    In terms of size, the 2.4 XR4 TI measured 2.42" carcass, 2.41" knob to knob and very square. The 2.6" XR4 measured the full 2.59" carcass, 2.62" knob to knob and had a nice profile. The 2.5WT DHF measured 2.44" Carcass and 2.57" knob to knob and had a very nice profile. I think I'm going to keep the DHF's on until the Spring and hope Bontrager releases a 29x2.6 XR3 tire that's much lighter than the XR4 otherwise I will stick to the DHF's.

  44. #44
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    Quote Originally Posted by bmwzimmer View Post
    I ran it in the front for about a week. 2.4 XR4 out back, 2.6 XR4 up front on 35mm IBIS 942 wheels. Traction feels 90% as good as a 2.5 Minion DHF but I think the DHF rolls slightly better. The DHF was about 50g or so heavier (2.5WT EXO 3C). The compound on the XR4 feels slightly softer though. It is finally starting to rain once every other week here in southern California so I decided to put 2.5/2.5 DHF's for better mud shedding and man I think it is a better combo in almost every aspect except. I honestly think rolling resistance on XR4's is not as good as DHF. My climbs for some reason are slightly faster despite the heavier tires.

    In terms of size, the 2.4 XR4 TI measured 2.42" carcass, 2.41" knob to knob and very square. The 2.6" XR4 measured the full 2.59" carcass, 2.62" knob to knob and had a nice profile. The 2.5WT DHF measured 2.44" Carcass and 2.57" knob to knob and had a very nice profile. I think I'm going to keep the DHF's on until the Spring and hope Bontrager releases a 29x2.6 XR3 tire that's much lighter than the XR4 otherwise I will stick to the DHF's.
    Thanks. Surprised the DHF rolls better. Terrain where I'm at is mostly hardpack and nothing really loose, so I don't think the DHF/DHR is an ideal combo like it is for others. XR4/XR3 seems like it'd be a pretty good combo for me, I know a lot of guys run XR4 F/R but I think the XR3 would be good out back around here.
    Patrick

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    Crap; got all excited yesterday when I saw some cars parked at the trailhead and went home and loaded up the bike. Got there and made it about 3-400 yards in and it turned to slop. Damn. Someone had ridden through it, but I'm not one to mess up the hard work they do so turned around and mumbled bad things about mother nature and the monsoon we've been having lately on the way back to the parking lot.
    But...the short distance I did ride was very promising. Traction on the moist leaf covered dirt was great. There were a few quick corners and a nice up/down/up on the side of a ravine that's off camber, rooty and bumpy where you thread the needle between 2 trees at the top. I don't think I've ever made it through there as easily! Unfortunately, that's where the fun ended.
    So I loaded up and went home...and rode the paved bike paths for a while. They do seem a little draggy on pavement if you try and go over 10-12mph and make a bit of buzzing sound.

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    I found the XR4 2.4/2.6 combo to roll quite well(much better than the plus tires). I didn't feel like i gave up any significant traction over the 27.5 2.8 Rekons on the climbs or roots/rocks. Much better turning dynamics with the 29er tires over the plus tires.

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    My biggest problem with running 2.4" XR4's in the rear is it burps so easily at lower pressures. I weigh 146lbs or a bit under 160 geared up and there is sealant residue all over the tires if I run lower than 26psi. The profile is very nice and round on a 30mm rim. Just on a 35mm rim does it appear a bit square. This affects rolling so if you are running an XR4 in the back with a wide rim, it will drag more than one with a 30mm rim where the intermediate knobs are not making as much contact to the ground.

  48. #48
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    For those of you not happy with the XR4 2.6 outback have you tried or considered a Rekon 2.6. I'm thinking I may try DHR 2.5 up front and Rekon 2.6 out back. If there is clearance issues I may try the Agressor.

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    Quote Originally Posted by bmwzimmer View Post
    My biggest problem with running 2.4" XR4's in the rear is it burps so easily at lower pressures. I weigh 146lbs or a bit under 160 geared up and there is sealant residue all over the tires if I run lower than 26psi. The profile is very nice and round on a 30mm rim. Just on a 35mm rim does it appear a bit square. This affects rolling so if you are running an XR4 in the back with a wide rim, it will drag more than one with a 30mm rim where the intermediate knobs are not making as much contact to the ground.
    That makes a lot of sense that they are draggy on an ultrawide rim. I am running a 30mm DT Swiss rim. It was a pretty tight fit and aired up with a floor pump and held air for several days without any sealant, so I am not expecting any burp issues(knock on wood).

    I plan on going with Minions when these wear out to see which I like better. Good to know that they roll well.

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    Finally got to test my XR4 Teams Issue 29x2.6s on my 2017 Fuel EX 9.8. My buddy put them on for me and I ran them with more pressure than I usually would to make sure they sealed well. I just rode around the Delta Watershed for about 40 minutes, but they felt great. Conditions were pretty wet, and the tires felt great. They handled well. Could be my imagination, but it seemed like the bike felt slightly ... plusher then with the 2.3s they replaced. Ah, it probably was my imagination. But I like 'em! :-) In general, I really like the way I have this bike set up now! I should add the disclaimer that I'm probably not nearly as discriminating as most of you guys are! :-)





    Last edited by bjeast; 03-07-2018 at 02:47 PM.

  51. #51
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    Just done my first ride on these tires on my Fuel EX. Have to say I really like up front compared to the DHF 2.5WT i was running.
    But on the rear, traction seems no way near as good as the Aggressor 2.5WT I was running. On dusty single tracks and over rocks it seemed to brake loose quite a lot.

    Think ill put them on my hard tail and see how they go there. Think they might be best suited for that style of riding.

  52. #52
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    It's interesting to hear this feedback about XR4 on the front. I wonder if anybody can compare it to Hans Dapmf. I know it's only 2.35 but it's probably close to 2.45 on the 30mm rim. I'd probably again replace the DHF by HD for the summer. I quite like it, having no problems even when it's wet.

  53. #53
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    Quote Originally Posted by bmwzimmer View Post
    Traction feels 90% as good as a 2.5 Minion DHF but I think the DHF rolls slightly better.

    Horses for courses and all that. DHF is awesome in dry conditions, but pretty sketchy on wet roots/rocks. DHF was my go-to for a ~decade, but there are so many better tires now. I'd take the XR-4 2.6" every day of the week over a DHF 2.5" nowadays.

  54. #54
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    Quote Originally Posted by bmwzimmer View Post
    My biggest problem with running 2.4" XR4's in the rear is it burps so easily at lower pressures.

    This would typically point more at the rim than the tire, no?

  55. #55
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    Quote Originally Posted by KVV View Post
    It's interesting to hear this feedback about XR4 on the front. I wonder if anybody can compare it to Hans Dapmf. I know it's only 2.35 but it's probably close to 2.45 on the 30mm rim. I'd probably again replace the DHF by HD for the summer. I quite like it, having no problems even when it's wet.
    The Hans Dampf 29x2.35 front with a Nobby Nic 29x2.35 rear was my setup for the last couple of years on both hardtails and FS. This on Derby 29.5mmID rims with the HD usually measuring right at 2.35. I'm a big fan of the HD. My trails are mostly fast flow with loose over hard.

    I experienced 2.6 Nobby Nics on a Ripley at demo back in the Fall and knew the 2.6 size was the balance I was looking for between 2.35 and 3.0. I just can't do a NN in the front...

    I always liked the rounded profile of Bontrager tires and when I recently built a SC Chameleon 29, decided to give the XR4 2.6 a go in the front with a XR3 2.4 in the rear. They measure 2.65 and 2.45 respectively.

    I'm still fine tuning pressure on the 2.6 XR4 but I like it more than the Hans Dampf. Tons of traction, transitions well and rolls well. My experience thus far has been in loose over hard, some soft wet spots and some wet roots. It has performed great in those conditions. And I like they measure true to size and prices are reasonable.

    I haven't convinced myself that I want to pedal an XR4 around on the back. I like the XR3 in the rear but hope we get a 2.6 version of that. I would also consider a 2.6 of the XR2 for the rear in the Summer.

    I'm glad I got off the train and gave the Bontragers a go as I'm really pleased with them thus far.

  56. #56
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    Quote Originally Posted by mikesee View Post
    This would typically point more at the rim than the tire, no?
    145lb rider on 35mm iw wheels. DHRiiís, DHFs, XR4 experts all use 24psi. But the XR4 TI requires 26psi. Its more the 120tpi casing thats the problem. Its supposed to be more supple but if it needs more air then it negates the added suppleness a bit.

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    Quote Originally Posted by bmwzimmer View Post
    145lb rider on 35mm iw wheels. DHRiiís, DHFs, XR4 experts all use 24psi. But the XR4 TI requires 26psi. Its more the 120tpi casing thats the problem. Its supposed to be more supple but if it needs more air then it negates the added suppleness a bit.

    Going to a more supple casing almost always means a bump in PSI compared to a stiffer casing. But how does this translate in terms of burping?

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    Quote Originally Posted by mikesee View Post
    Going to a more supple casing almost always means a bump in PSI compared to a stiffer casing. But how does this translate in terms of burping?
    Burping is all about the rims, never burp with my Derby rims and low pressure!!

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    Derby rim are a bit overrated, my old neighbor cracked one quite easily. Anything less than 30psi wouldn't work for him (200lb guy). It all depends on your riding style and terrain. It's true you will never burp a rim with low pressures if you ride fireroads all day.

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    Quote Originally Posted by bmwzimmer View Post
    Derby rim are a bit overrated, my old neighbor cracked one quite easily. Anything less than 30psi wouldn't work for him (200lb guy). It all depends on your riding style and terrain. It's true you will never burp a rim with low pressures if you ride fireroads all day.
    I call total BS!! Have fun on the fire roads!!

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    Did Derbyís marketing team misinform you? Burping is NOT ďall about the rimsĒ. Its the rim, tire and tire pressure. But hey if you think you can run 5psi without burping, good on ya!!

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    Quote Originally Posted by bmwzimmer View Post
    Did Derbyís marketing team misinform you? Burping is NOT ďall about the rimsĒ. Its the rim, tire and tire pressure. But hey if you think you can run 5psi without burping, good on ya!!
    The reason I mention Derby because itís is an example of one rim that has a very tight Bead Channel. Even when the tire is Totally flat, itís hard to get the tire to break loose off the bead, other carbon rims that have like older set of LB rims they Basically falls off the rim when deflated. I also have a set of NOX teo they are also easier to get the tire off when totally deflated.
    Trying to To educate you on the subject and of course air pressure and the tire do play into the matter, but the rim is the biggest factor with commen sense about air pressure.

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    Quote Originally Posted by bmwzimmer View Post
    My biggest problem with running 2.4" XR4's in the rear is it burps so easily at lower pressures. I weigh 146lbs or a bit under 160 geared up and there is sealant residue all over the tires if I run lower than 26psi.
    I'm 170# and I run them with 24 psi in the rear. I've been running them for about a year and have never burped it. Perhaps your rim is a contributing factor. I'm on Giant carbon rims.

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    Finally got a lap in today. Running 17f/19r on a still really damp trail felt good overall; rear felt a bit draggy on the real squishy parts, think I need to bump up pressure a bit. Traction was great, rollover better than B+ and they carry speed like crazy once rolling. Does take a bit more effort to get going though. Cornering seemed close. More testing needed....

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    Does anyone know weight difference between the 2.6 and 2.4 XR4.

    Currently running a 2.6 front and rear. But never have issues with rear grip. So wondering if uphills would be much of an advantage if I went to a 2.4 out back. To save resistance and also weight.

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    About 100g IIRC.

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    Quote Originally Posted by bbunnys View Post
    Does anyone know weight difference between the 2.6 and 2.4 XR4.

    Currently running a 2.6 front and rear. But never have issues with rear grip. So wondering if uphills would be much of an advantage if I went to a 2.4 out back. To save resistance and also weight.
    Mine measured - 2.6 = 942 g , 2.4 = 769 g

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    Quote Originally Posted by c_trail_biker View Post
    Mine measured - 2.6 = 942 g , 2.4 = 769 g
    Sweet, thank you

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    Has anyone tried 35 or 40 mm inside dia. rims with 29 x 2.6 or larger tires?

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    Quote Originally Posted by c_trail_biker View Post
    The weight of my XR4 2.6 came in at 942g. For comparison a XR4 2.3 came in as 770g. I also include a picture of the 2.6 on a 30mm internal rim compared to Rekon 27.5 2.8 tire on a 40mm rim. The pattern is pretty similar, the XR4 knobs seem a little taller and the tire is almost as wide. I may return the 2.3 if I can locate a 2.4 XR4 in stalk, I don't think a 2.6 will fit in the rear of my Hightower.
    Which Hightower? The current one or the old version? I was considering getting a Hightower , but like to keep the option of running 29x2.6.

    Thx!

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    Looking at the XR4's 2.6 to replace the Nobby Nic 2.35 that came with my Fuel EX.

    Anyone who has some info about the sidewall strength?
    I'm planning a trip to the Alps (mostly uplifts) and want something a little sturdier then the NoNi which already have a few cuts in them from les rough terrain...

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    Quote Originally Posted by Everyoneknowsbob View Post
    Looking at the XR4's 2.6 to replace the Nobby Nic 2.35 that came with my Fuel EX.

    Anyone who has some info about the sidewall strength?
    I'm planning a trip to the Alps (mostly uplifts) and want something a little sturdier then the NoNi which already have a few cuts in them from les rough terrain...
    .

    The SE4 is the same tread but with a tougher casing. Iíd say the casing is similar in feel to GRID, a bit differ than EXO, but much lighter/more supple than Double Down or Super Gravity. If it was mostly uplifts, you could do the E4 with crushcore on the rear, or step up to something even tougher.
    What is your previous experience on similar trips? Which tires (casing) have held up or failed for you?
    Last edited by Tjaard; 06-07-2018 at 07:20 AM.

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    NSMB.com has a pretty thorough review of these tires:

    https://nsmb.com/tag/xr4/

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    Quote Originally Posted by mikesee View Post
    DHF is awesome in dry conditions, but pretty sketchy on wet roots/rocks. DHF was my go-to for a ~decade, but there are so many better tires now. I'd take the XR-4 2.6" every day of the week over a DHF 2.5" nowadays.
    Can you elaborate a bit more on that?
    What/where do you like the XR4 better than the DHF? Wet rocks roots? I would have thought the softer rubber compound on the Maxxis tires would perform better in those conditions?

  75. #75
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    Quote Originally Posted by Tjaard View Post
    NSMB.com has a pretty thorough review of these tires:

    https://nsmb.com/tag/xr4/
    Thanks! Great review. Might mix the SE(rear) and XR(front) if it's going to be the 4-series!

  76. #76
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    Quote Originally Posted by Everyoneknowsbob View Post
    Thanks! Great review. Might mix the SE(rear) and XR(front) if it's going to be the 4-series!
    I've got a 2.6 Rekon on order for the back of my hardtail (+ CushCore). That NSMB review makes me want to look at a 2.6 XR4.
    I like 'em long, low, slack and playful

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    Quote Originally Posted by Tjaard View Post
    .

    The SE4 is the same tread but with a tougher casing.

    Yep. SE4 is available in 29 x 2.4, 2.6, and 3.0.

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    So after deciding I "need" a pair of 2.6 XR4's I called the Trek Benelux office to see which lbs would have them in stock. Apparently no lbs in Belgium, Netherlands or Luxemburg has this tire, not does Trek HQ.
    Both 2.4&2.6 are expected to be available end of July/mid August.

    On to find another set of 2.6's I need :-)

  79. #79
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    Quote Originally Posted by Everyoneknowsbob View Post
    So after deciding I "need" a pair of 2.6 XR4's I called the Trek Benelux office to see which lbs would have them in stock. Apparently no lbs in Belgium, Netherlands or Luxemburg has this tire, not does Trek HQ.
    Both 2.4&2.6 are expected to be available end of July/mid August.

    On to find another set of 2.6's I need :-)
    Did you check for the SE4? If you can live with slightly higher weight, they are a nice solid casing. If you are planning on taking your bike to some nice, rocky trails this summer, the SE4 casing would be a better bet anyway. Itís only slightly stiffer than EXO, fairly similar to GRID in feel. Itís not anything like Double Down or Super Gravity casings, so it should roll and feel fine.

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    Quote Originally Posted by Tjaard View Post
    Did you check for the SE4? If you can live with slightly higher weight, they are a nice solid casing. If you are planning on taking your bike to some nice, rocky trails this summer, the SE4 casing would be a better bet anyway. Itís only slightly stiffer than EXO, fairly similar to GRID in feel. Itís not anything like Double Down or Super Gravity casings, so it should roll and feel fine.
    Yes i did, same answer unfortunatly.
    Found a Magic Mary (2.35) for cheap. Ill use that in the alps this summer and try to get the xr4 after the summer .

  81. #81
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    Quote Originally Posted by Tjaard View Post
    Can you elaborate a bit more on that?
    What/where do you like the XR4 better than the DHF? Wet rocks roots? I would have thought the softer rubber compound on the Maxxis tires would perform better in those conditions?

    DHF is sketchy on anything wet. No siping means it skates sideways as fast as forwards.

    The XR-4 is no mud tire by any stretch -- it's just more predictable in the wet than the DHF.

  82. #82
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    Quote Originally Posted by Everyoneknowsbob View Post
    Yes i did, same answer unfortunatly.
    Found a Magic Mary (2.35) for cheap. Ill use that in the alps this summer and try to get the xr4 after the summer .
    And Hans Dampf are supposed to come out in 2.6 sizes and with a new tread design later this summer too.

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    Quote Originally Posted by mikesee View Post
    DHF is sketchy on anything wet. No siping means it skates sideways as fast as forwards.

    The XR-4 is no mud tire by any stretch -- it's just more predictable in the wet than the DHF.
    I'll tell you what, I've tried many different tires and I always go back to Bontrager. Like the new labels too!!

  84. #84
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    Quote Originally Posted by dgw7000 View Post
    I'll tell you what, I've tried many different tires and I always go back to Bontrager. Like the new labels too!!
    If you would have asked me a a little more than a year ago if I would put a Bontrager tire on any of my bikes I would have said heck no! After my experience with the Chupas on my 29+ wheelset for my Wozo it changed my impression on Bontrager tires....still amazed that a sub 900g 3.0 tire can be so bomber on the unforgiving terrain here in CO. I killed 2-3 rear Aggressors last year, but Chupas are still going strong.
    I wouldn't have tried the XR4 (2.4) on the front of my Mayhem if it weren't for the positive experience I had with the Chupas. Again, very impressed with this tire...light, fairly fast rolling, very good traction, and haven't killed it so far (although I'm only running it front) Not quite the traction of the E13's and/or 2.5 DHF's I ran on front on bikes last year, but for a great all-rounder it's tough to beat.

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    Mine came in today. It's replacing a WTB Ranger 3.0 L/F and joining an XR4/29-2 2.35 in the back.

    Actual weight: 914g
    B2B: 160mm
    Tread, i39, 40 PSI, new: 67.2mm / 2.65"
    Casing, i39, 40 PSI, new: 67.5mm / 2.66"
    Height, unloaded, bare wheel: 29.9"

    The casing feels stiffer and thicker than the Ranger. On the wheel, it's about 0.25" shorter and 0.3" narrower. No problems mounting it by hand. Used a floor pump for the initial bead seat.

    EDIT: 6 hours later, it's 69.5mm casing and 68.7mm tread. Still 40 PSI.

    EDIT: Next day, at riding pressure (~16 PSI), it was 67.5mm.

    Measurements:

    New Bontrager XR4 team issue 29 x 2.6-img_3631.jpg
    New Bontrager XR4 team issue 29 x 2.6-img_3632.jpg

    Side view:

    New Bontrager XR4 team issue 29 x 2.6-img_3629.jpg
    New Bontrager XR4 team issue 29 x 2.6-img_3633.jpg

    The 29-2 2.35 actually has a 2.45" casing, that's the only reason the XR4 doesn't look even bigger. 180mm rotor on the front wheel.

    Compared to the Ranger:

    New Bontrager XR4 team issue 29 x 2.6-img_3623.jpg
    New Bontrager XR4 team issue 29 x 2.6-img_3628.jpg
    New Bontrager XR4 team issue 29 x 2.6-img_3627.jpg

    Lefty 1.0 clearance:

    New Bontrager XR4 team issue 29 x 2.6-img_3636.jpg

    If anyone's curious, this is Slime STR on the Ranger after about 4 months. Super tacky, but not actually flowing. I wonder if there's something I can add to make it liquid again, the sealant itself seems in fine shape. (EDIT: Slime says to just add water.)

    New Bontrager XR4 team issue 29 x 2.6-img_3625.jpg

    No riding impressions yet, it just rained over here. Maybe in a few days. First trial will probably be at 17-18 PSI.
    Last edited by alexdi; 06-11-2018 at 08:47 PM.

  86. #86
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    Quote Originally Posted by Tjaard View Post
    And Hans Dampf are supposed to come out in 2.6 sizes and with a new tread design later this summer too.
    True, the Magic Mary will come in a 2.6 too after eurobike.
    But thats to much for our local trails.

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    Quote Originally Posted by mikesee View Post
    DHF is sketchy on anything wet. No siping means it skates sideways as fast as forwards.

    The XR-4 is no mud tire by any stretch -- it's just more predictable in the wet than the DHF.
    I've been using SE versions but I agree with predictable. The 3 and 4 treads don't seem to pack up or kill your traction with some mud the way other tires I like do. I've been into bikes and chasing the ultimate tire for decades and realized I just ordered a some SE4 without considering anything else to deal with worn and torn SE and XR in 3 and 4 on some of our bikes.

    We are heading to what I think is your neighborhood and today my wife's bike gets a worn SE3 rear swapped with SE4.

    I was tempted to consider 2.6 but our rims have 25 mm inner width and I don't think I'd want the profile to be more round.
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    Quote Originally Posted by Tjaard View Post
    Which Hightower? The current one or the old version? I was considering getting a Hightower , but like to keep the option of running 29x2.6.

    Thx!
    The regular HT.

    Update on XR4 tires after 3 months of riding the rear side knobs (2.4 version) are starting to rip from the casing, causing a bit of squirm when leaning the bike over. Similar to what I have experienced in the past with Schwalbe Nobby Nics. Does anybody know if Minions have the side knob tearing issue?

    Note 2.6 on the front is holding up fine.

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    Quote Originally Posted by c_trail_biker View Post
    The regular HT.

    Update on XR4 tires after 3 months of riding the rear side knobs (2.4 version) are starting to rip from the casing, causing a bit of squirm when leaning the bike over. Similar to what I have experienced in the past with Schwalbe Nobby Nics. Does anybody know if Minions have the side knob tearing issue?

    Note 2.6 on the front is holding up fine.
    Mine are wearing like others with similar durometer rubber.
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    Iíve only owned treks since Iíve been riding therefore always bontrager tires. Old xr3/4 combo was fast but not enough traction once I went to a full suspension bike. Old xr4 front and rear was better but still lacking. Now I run se5 front and rear on i30 rims and am very happy.

    New Bontrager XR4 team issue 29 x 2.6-img_2828.jpg


    BUT I must say..... I feel like even though it might be slower for my slash 7 here in New England, I really wanna try se4 2.6 front and 2.4 rear. My wife is running se4 2.4 f and rear and can feel a noticeable drag compared to dhf/dhr but there is more pattern. Iíve only seen 3.0 xr4 in person and itís huge.


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    Are the 2.6 too round with 25 mm inner rims? Some guidance I read on larger tires says have the newer 30 mm inner rims. The manual for my 25 mm inner DT Swiss rims showed these as a possibility.

    I'm not sure I want larger than my 2.4s if I lose edge to push into or hold. I have older model "4" on a bike and the new tire still looks more full but I haven't measured them.

    I've also got hesitation for anything but the SE series. My wife and I have worn out 3 SEs now and are about to be there with a 4th. We have them on 3 bikes. 3 seasons ago I ripped both XR Bontragers and Maxxis models I like. Moving to SE got me a nice performing tire that isn't too heavy or slow feeling and one trail area known for greased sharp rock isn't wrecking them.

    Thanks for any input on 2.6 and rim width.

    P.S. I think my ultimate choice would be SE3 in a 2.4 rear and SE4 2.6 in front.
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    Quote Originally Posted by bitflogger View Post
    Are the 2.6 too round with 25 mm inner rims? Some guidance I read on larger tires says have the newer 30 mm inner rims. The manual for my 25 mm inner DT Swiss rims showed these as a possibility.
    I have the 2.6 on 30mm internal width rims, I don't think I would go with a 2.6 on a 25mm rim. The 2.4 would fit great. The 2.4 is still a big tire and would have a better profile.

  93. #93
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    Quote Originally Posted by c_trail_biker View Post
    I have the 2.6 on 30mm internal width rims, I don't think I would go with a 2.6 on a 25mm rim. The 2.4 would fit great. The 2.4 is still a big tire and would have a better profile.
    Agree with this.

    Mine are on 30mm internal also, and certainly would not go less. Im going to change to a 2.4 on rear soon. As will work better there.
    Think the 2.6 would be perfect on a 35mm internal.

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    Quote Originally Posted by c_trail_biker View Post
    Update on XR4 tires after 3 months of riding the rear side knobs (2.4 version) are starting to rip from the casing, causing a bit of squirm when leaning the bike over. Similar to what I have experienced in the past with Schwalbe Nobby Nics. Does anybody know if Minions have the side knob tearing issue?

    Note 2.6 on the front is holding up fine.
    Follow-up update, the rear 2.4 is done after 4.5 months and about 500 miles(virtually all single track with a fair amount of rocks). Started leaking from under one of the tearing side knobs. All in all not bad for for a $55 (retail) tire. Front 2.6 is still holding up fine, center knobs are starting to round off, but minimal tearing on the side knobs. I think i can get a couple hundred miles more out of it.

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    Anyone know when the 2.4s will be back in stock? They seem to have been unavailable forever on treks website.
    Somersaults... that's how I roll.

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    I snagged a 2.4 2 hours after my LBS put it on the shelf. Try calling LBS's near you and have them hold one for you.

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    Quote Originally Posted by briantortilla View Post
    Anyone know when the 2.4s will be back in stock? They seem to have been unavailable forever on treks website.
    2017 version is being clearanced out. price is nutty good

    https://www.ebay.com/itm/2-QTY-Bontr...72.m2749.l2649

    really doubt these will last long @ 55pr

    for those of you who don't know random bike parts / crosslake sales is a wholesaler. they buy large lots from manufacturers.

    which makes you wonder why the hell trek sold all the 2017 tires off rather than through dealers on sale. these things move FAST

    se4 is also available here if you need a reinforced casing and i think {but am not sure} they may use a softer compound? anyone remember on the xr vs se?

  98. #98
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    Quote Originally Posted by racebum View Post
    2017 version is being clearanced out. price is nutty good

    https://www.ebay.com/itm/2-QTY-Bontr...72.m2749.l2649

    really doubt these will last long @ 55pr

    for those of you who don't know random bike parts / crosslake sales is a wholesaler. they buy large lots from manufacturers.

    which makes you wonder why the hell trek sold all the 2017 tires off rather than through dealers on sale. these things move FAST

    se4 is also available here if you need a reinforced casing and i think {but am not sure} they may use a softer compound? anyone remember on the xr vs se?
    SE rubber seems the same. My experience with SE3 and both SE4 treads has been tougher tires but light and good performers. XR had cuts that would not seal by comparison.
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    Slightly off topic, but anyone run SE3 29x2.3 on a 30mm internal rim.

    Been playing with SE4 29x2.4 and is good. But some longer days on trail roads its to much.

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    Quote Originally Posted by bbunnys View Post
    Slightly off topic, but anyone run SE3 29x2.3 on a 30mm internal rim.

    Been playing with SE4 29x2.4 and is good. But some longer days on trail roads its to much.
    I do, it's actually slightly larger than the 2.4 (casing) and a little more round. Awesome for rear tire.

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