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Thread: Geax goma

  1. #1
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    Geax goma

    Anyone give these a tires try yet? Who has them in stock?

  2. #2
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    I just got one to use as a front tire. Went with the 29 x 2.4 foldable version, as it seemed to be the lighest (at a svelt 800g). Just weighed it last night and it was about 900g on the dot. Didn't think margin of error would be at 100g, but oh well. Looks beefier than the Ardent 2.4 it replaces, but haven't ridden on it, so can't comment on the ride.

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    Geax goma

    Scored a pair of 27.5 TNTs for 40 each from bike tires direct. Waiting for them to arrive.


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    27.5- 2.2 or 2.25 not sure. Very good traction and direction on loose 1''- 2'' ball bearing rocks and rolls good on soft hard pack. They corner like crazy when condition are good. But they scare the fck out of me(They try to kill me) When wet. Not enough contact patch just the tips of the tread touching the rocks and to skippy on diagonal-roots. had to run then to low on psi for those condition.

  5. #5
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    I picked up a 2.25x29 version a few weeks ago. Hadn't had a chance to get it out on the trail until yesterday, riding since then has just been commuting back and forth to work.

    Setup is GEAX Gato 2.3" up front with the Goma 2.25" in the back. Front is set at 15PSI currently (tubed, needs to be raised to 20ish though) and 22PSI rear. I live in No NV so have all of the world renowned Lake Tahoe trails in my backyard. Rode Emigrant Trail (XC/Trail) yesterday for a total of 24miles. This was the first time I had the Goma on dirt and was very impressed with it. Never broke it loose unless I meant to, traction climbing over rock gardens and loose over hard was stellar. When I got it, I had it weighed at my LBS and came in at 820g for the foldable (which is about right from the website). Was hoping that it would come in closer to my Gato (2.3" AM) at 700g but oh well the weight difference from my 2.25Purg Control 2bliss and GEAX Saguaro 2.25" was not noticeable.

    Climbing this thing just grabbed whatever was there, never once did I feel like I was skipping, spinning or missing out. The tire just clawed up whatever I was on and I had some very loose rockgardens to climb on this trail as we have had little wet weather this year so the trails are very dusty. In the loose over hard sections again, the outer knobs just seemed to punch through the dust to the bottom and really grab a hold of whatever was there. Only time I skipped/spun was when I got too much weight off the back tire during a climb but even that was just a momentary spin and then she just climbed.

    Descending this this was a rockstar!!! I was used to the strange void section when leaning the bike over from the Purg as there was that transition between the center and side knobs (which is why I really didnt like the purg). This does have a void, dont get me wrong, but the transition is much more predictable and there is no sudden let loose or grab. When going around loose corners at speed I could feel the tire slowly, predictably starting to let loose and could compensate by adjusting my balance or scrubbing a bit of speed. Even those few times where I would ping off a rock, the tire did not suddenly let loose, I was actually startled by the sound of the rock being shot off as I would slide down it because I never felt any traction loss.

    Rolling resistance on everything was pretty standard. The tire did not feel exceptionally fast but at the same time it did not seem like I was seriously lugging a huge weight behind me. Rolling was smooth and seamless, again feeling the general transition between the center knobs and the outer knobs as the traction would slowly and predictably start to go away.

    Setup on my Stan's Flow (OG) rims was actually quite easy. I am running tubed but have had a b*tch of a time getting my other GEAX tires on and off the rims as the folding bead are quite tight and take irons and lots of cussing to get them on/off. These slipped on fairly easily, still requiring irons but no where near the effort the others had taken. Since these are not the TNT I have not setup tubeless yet as the TNT version WILL NOT fit on BST beadseat rims. Not that big of a deal for me as I am not a weight weeny and do not measure grams for savings.

    One thing that I have found out about GEAX tires is you should ALWAYS run them at low pressures. For some reason they really come alive at lower pressures and I have a feeling that it has to do with the rounded casing profile. Unlike most tire casings, the GEAX tires really use a more round profile so if you run at higher pressures you really only get the center knobs. Other way to remedy this is to run them on wide rims. My Flows measure at 28mm wide so at low 20s, high teens my tires spread out pretty well to involve the entire tread pattern.

    For around here I think my setup of the Gato front and Goma rear is going to be killer no matter where I go. This setup just seems, for me, to hook up on anything I throw at it, drifts predictably when I want it too and otherwise is just a great setup. This will be going on my new trailbike that I am in the process of building (Hammerhead Bikes Thumper) so I am stoked to see how it does on a Full Squish bike vs. my current steel HT (On-One Inbred 29r).

    Some picture stoke.
    Untitled by renofizz, on Flickr

    Untitled by renofizz, on Flickr

    Untitled by renofizz, on Flickr
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  6. #6
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    Excellent tires!

    I agree with a lot that "gregnash" said above.

    I was using the Ardent 29x2.4, and just switched to the standard Goma 29x2.4 tires on Stans Flow EX rims on my R.I.P.-9. I love this tire! It actually rolls better than the Ardent!

    I ride rocky, chunky, technical trails in AZ. The Goma's have a very thick sidewall just like the Ardent 2.4, (which is much thicker than the Ardent 2.25.) They roll fast without resorting to ridiculous ramps, which means in the rear, you get excellent climbing, AND braking traction. Much better climbing traction than the Ardent. Cornering is also much better than the Ardent, as the narrow side knobs on the Ardent would fold over on hardpack. The Goma is very predictable. It also wears quite well.

    I used the standard version because the TNT's are too tight for Flow rims. It went on nice and tight, and sealed excellently. Holds air really well with almost no loss, and no seepage.

    As gregnash stated, GO LOW! They have thick sidewalls and high volume. About one or two mm more volume than the Ardent. I weigh 190 pounds and am using 18psi front, 21psi rear, on very rocky trails.

    Lets see, thick sidewalls, good sealing, excellent braking, cornering, and climbing traction, and very good wear and durability. What else could you want? Cheaper maybe, but $50 is competitive. These will be my go to tire for as long as they make them! Here it is compared to the Ardent. Geax goma-sam_0870_zps2a14ff4a.jpg
    Geax goma-sam_0867_zps738c99e1.jpg
    Geax goma-sam_0871_zpsfcfaab0b.jpg
    Geax goma-sam_0868_zps58fdefaf.jpg
    Geax goma-sam_0872_zpsc6c17e27.jpg
    Geax goma-sam_0869_zpscb1dc93e.jpg

  7. #7
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    Geax goma

    So far I like these tires. Roll well for knobbies. The 2.4 on the front has great grip with 16lbs. I punctured the 2.25 rear which surprised me. I blame a combination of my weight and poor style, although now I know why the heavy casing enduro tires exist. The 2.25 doesn't fare as well on wet rocks as I hoped which is typical around here. It does perform well on wet roots. In the winter I'll probably go with a Magic Mary/2.25 Hans Dampf combo.


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  8. #8
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    Quote Originally Posted by stremf View Post
    I just got one to use as a front tire. Went with the 29 x 2.4 foldable version, as it seemed to be the lighest (at a svelt 800g). Just weighed it last night and it was about 900g on the dot. Didn't think margin of error would be at 100g, but oh well. Looks beefier than the Ardent 2.4 it replaces, but haven't ridden on it, so can't comment on the ride.
    I've ridden all summer on these and cannot say enough good things about them. Excellent traction, predictable handling and robust construction. I actually just purchased another one locally, as it was a ridiculous deal. The weight was at 790g, so little under advertised. Surprising there is 110g difference between the two exact same tires.

  9. #9
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    Yeah I have found that GEAX tires usually very pretty largely between tires. Mine came in at 820g so that is not too bad.

    I recently dumped this on my new HH Thumper FS trail rig with the Schwalbe Pacestar Rocket Ron on the rear. So far has been a great tire and running tubed it is doing great at about 25psi. I rode Mr. Toad's Wild Ride in Lake Tahoe a few weeks ago with this setup and it did really well. Actually, a couple days after getting back my buddy and I went for a local ride and I noticed a wobble in my front rim, figured it was just carnage from the Toad's ride. Ended up being that I was running such low pressure in the front that I actually had some rock (granite gravel) get inbetween the rim bead and the sidewall and push the tire out but never caused an issue.

    Thinking of grabbing the 2.4 version for up front with the 2.25 in the back, but since I do a lot of climbing I really appreciate the low weight of the RoRo in the rear. Taking the bike to Steamboat Springs, CO in a few weeks so will give a bit of a report after that.
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  10. #10
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    Bump. Just scored a pair of 29x2.4 "sticky" Gomas (non-TNT version) in a raffle, not long after putting a Gato 2.3 on the rear of my Yelli. They weigh 900g each but look grippy as hael. I suppose they'll be awesome on the front, but I'm intrigued by the thought of adding even more volume and tire compliance to the back end. Anyone measure theirs yet to see if they're a true 2.4"? Gregnash, how did they fair for you in CO?
    Eat, ride, eat, rest, repeat.

  11. #11
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    Mounted on Crest @ ~19-20psi, mine is:

    2.31 @ casing
    2.44 @ knobs

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    Yes, they are a true 2.4, as mine were actually a couple mm bigger than a 2.4 Ardent.

  13. #13
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    Been running a Sticky TNT Goma 2.4 up front for the past 2 months in NorCal. It's been a very dry winter, so mostly dry trails with a lot of rocks. And.... the Goma rocks. Magnificent front tire. Here's a pic of me putting a lot of trust into the Goma (courtesy of Hoolie).

    Geax goma-img_1431.jpg

  14. #14
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    Excellent news. I've got Arch EX rims, so the tire profile should be pretty good. I guess I just need to wear out my current treads a bit before making the switch. Thanks for the replies everyone.
    Eat, ride, eat, rest, repeat.

  15. #15
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    I've got the Arch EX rims as well.
    "So you think it's the hat?... A lot of people hate this hat. It angers a lot of people, just the sight of it." - Uncle Buck

  16. #16
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    Geax goma

    I just stuck a pair of these in 650b with tnt and sticky on the front and rear tires of my Bronson. I waited until I was half way through the High roller 2's that came with the bike and will use those for when it dries out or for emergency as I wasn't a fan as I felt like I was on the verge of the front washing out in a lot of corners, yes I could lean the bike more but I still didn't like that angle where the tire felt like it was going g washout due to the gap btw the knobs on the edge of the tire.

    Moving on, Installation was a breeze. Mounted right up and took air. Beads set at 40psi give or take no and leaks around the rim etc. Was shocked to be honest as I've had a lot of mounting issues in the past with other tires.

    Went for the first ride today here in the PNW and it was a mud pit in some spots on the trails. Lots of roots and wet/mossy rocks. Tire rolled right on over, only had a few slips/slides on angled roots/rocks which I've yet to find a tire which can grip in these conditions. Traction was great and it easily took the beating I gave it on some rocky/roots downhills. Slides were very predictable and the tire handled well.

    Right now I have them set at 25psi but will try 20psi on the next ride to see how they react to my Clydesdale sizing and whether they roll or burp air, fingers crossed.

    So far I'm impressed, time will tell on durability and the longevity of the tire.



    Steve

  17. #17
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    I've been running a set of 2.25 folding bead (non-tnt) Gomas on my Norco Range since early April, they replaced the stock High Roller 2. I needed a faster tire for my local trails and was willing to trade off some of the excellent cornering of the HR2 along with its ability to punch into loose blown out terrain and hold traction. Mine are setup tubeless on M9020 XTR Trail wheels, running about 28-30psi for a 150 lbs rider (going below 25psi results in rims getting bashed unless I'm running a 2.5" DH tire).

    So far they work the way I expected. They roll decently well, I'd say about the same as my Conti Mountain King II and definitely better than the Trail Kings. Overall cornering is about the same as the Trail King (better on hardpack, falls behind a bit on sand or deep loam) but requires more commitment in laying the bike over due to the tire's rounder profile and larger gap between the centre and cornering knobs. The Goma also doesn't clear mud as well as the Contis, and doesn't stick to wet things as well as the Trail King's Black Chilli compound, though I'd say it's better than the MKII in that respect.

    Overall I'd say I've found a new favourite trail tire for everyday use. They have good volume on them to provide a good ride and keep my rims safe, and they perform well for the trails that I ride most often. I'll still use my other wheelset with DH tires for bike park days, knowing what my bike can do I'm pretty sure that anything short of a DH tire is going to have a short life.

  18. #18
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    Just got my hands into a pair of 2.25 TNT 29 Gomas, coming on from narrow Schwalbe the sidewalls on the Goma's are tough, on the other hand they tip the scale at 881 and 888gr.

    Mounting them was a PITA on Notubes, they hold up air pretty well tubeless and the bead popped easily even with my pump, also they're not that wide, 2.18" on Sunringle Blackflag rims.

    The first ride was on hardpack about 25 miles and they roll well, not as my former Schwalbe set but fair enough, non technical climbs is where I could tell the extra weight though.

    Yesterday did a second ride, this time on a very rocky technical trail (28 psi rear/26 front) and the climbing over rocks became easy, I'm no longer afraid of sharp rocks and picking lines, braking was better on steep loose. Cornering was scary though...
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  19. #19
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    Quote Originally Posted by kevocastro View Post
    Cornering was scary though...
    The Goma is a tire that desperately needs a wider rim to square it out so that you can actually reach the cornering knobs at a reasonable lean angle. My rims are 24mm wide (internal) and that's barely enough to get the side knobs down in time, I can only imagine how it must be like with your rims.

  20. #20
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    Got one of these, 2.25 for the rear on my 29er Yeti. Running a Maxxis DHRII front. I really really wanted to like the Goma, but climbing on it was poor, had wheel slip under power numerous times in places that's never happened with my typical DHRII rear. Also cornering was sketchy, the tire was drifty. For the record, was running it on 25mm internal width rims at 26psi. All in all, I can see how this tire would work for someone, maybe more XC oriented, who wanted something more aggressive than say a Maxxis Ikon. But I've definitely realized I value grip over rolling resistance (and the rolling resistance b/t this and a DHRII rear isn't that much). Going with DHRII front and rear.

  21. #21
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    Rpearce1475 - really? Not sure where you are riding because I have never had any issues with the Goma in loose terrain. I live in the Lake Tahoe area and have never felt what your are describing but then again I also run my rear at like 20psi tubed on 26mm external rims. I do find it drifts some with very loose or sandy corners but I don't know how hard you put your bike so that may have a lot to do with it. I have also runt the Goma from here to Steamboat Spring CO and never had it break loose on a climb unless it was incredibly loose or I was weight incorrectly.
    Maybe look at the 2.4" version with the Sticky Compound to see if that changes your ride any. I have been running my 2.25 folding sticky for close to 600 miles on two bikes and in Sedona Az to Steamboat Spring to Lake Tahoe. It is finally starting to show some wear so it will be replaced by the end of the season with another version. Currently have a 2.4" version on order for the front to replace my burly ass Geax Sturdy.


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  22. #22
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    In Alabama. Issues were on slightly wet trails yesterday, no traction on wet roots or rocks. Loose here is pine straw. I'm keeping the Goma for the rear of my XC HT that I don't ride as aggressively as my full suss, but for the Yeti I'll need more aggressive tires it looks like. For the record I came to the Geax (sticky compound) from an Ikon rear that gave me similar issues. Again, I bet this would be a great tire for some, it just doesn't really suit my riding style. Ah well, at least it was super cheap!

  23. #23
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    I bought a 29 x 2.25 Sticky about 1.5 month ago....it was cheap and I had credits to spend at Backcountry.com

    I have pretty satisfied with it so far here in the loose over hardpack we have in So. Cal.

    It is set up tubeless on a CB Cobalt 11 front wheel(the same size as an Arch EX) around 24-26 psi for my 180 lbs.

    For my conditions, I haven't had any issues with traction. Rolls well, not an anchor. Has nice hook up. I am used to running sketchy tires(closet weight weenie) on the SS. Even ran it for a solo 12hr endurance race last weekend.

    I put it up there right next to the Ardent.....also reminds me of the old Minion DHF.

    I may buy a couple more....especially for the price.
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  24. #24
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    Today is gonna be ride #3 and feel like messing around with the tire pressure.

    Geared at 190lb, how low could I go? Last ride tried 28rear/26front

    Rocky technical trail
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  25. #25
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    I'm geared up at about 250/260 give or take and I run them at 20psi and hit trails from xc to aggressive AM trails here in the PNW (Vancouver Island) quite regularly (2-3 times a week). Normally I cannot ride with tyre pressures below 26 without burping the tire and getting coated in tyre sealant.

    The only time i have burped the tyre was the other week in Fernie when I was coming down Castle Mountain, slipped on a root on a hard left turn on a DH track, slid a bit and burped the tyre (lost 4 psi).

    The more I ride these tyres the more impressed I am with them. Sure they were a little grease in the wet conditions over the winter time, but I have yet to find a tyre that can deal with the wetness we have here without some slippage/inability to hookup. The sidewall strength of the tyre has impressed me quite a bit as on a few of the trails I do I can cover bad rock gardens and root gardens that have shredded the sidewalls on my original high rollers and one of my HR2's when I first got my bronson.

    I have 26mm rims, 27.5 tyres and the sticky version with a tyre width of just shy of 2.4 (i think). I am a bit concerned with the life/duration of the for the cost of the tyre, but I will strongly debate putting them on again when I kill these tyres off.

    Which I am guessing will be by the fall with the amount of times I ride. although that may change with the recent lay off. Thank you OPEC!!!





    Quote Originally Posted by kevocastro View Post
    Today is gonna be ride #3 and feel like messing around with the tire pressure.

    Geared at 190lb, how low could I go? Last ride tried 28rear/26front

    Rocky technical trail

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