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Thread: Jumbo Jim

  1. #51
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    That is an awesome video! I am really wanting 100mm rims and some wide tires now.

  2. #52
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    Does anyone have these tires in stock yet?
    It doesn't matter what I ride as long as I ride it Rubber Side Down●~●.

  3. #53
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    Quote Originally Posted by RockyJo1 View Post
    Does anyone have these tires in stock yet?
    I posted this awhile back. I emailed Schwalbe directly and was told "early spring" for the US. If you're really itchy, there's a pair up on eBay right now.

  4. #54
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    Quote Originally Posted by Espen W View Post
    Our own C4 103mm rims.
    Essentially a 103mm version of the 80mm rim that Borealis/Turnagain sells.
    I run them tubeless without any latex solution.
    And when are these going to be available?

  5. #55
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    Quote Originally Posted by sean salach View Post
    And when are these going to be available?
    2045

  6. #56
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    I'm waiting on some from Bike24 in Germany...still saying unknown delivery.
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  7. #57
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    Quote Originally Posted by Tunalic View Post
    I'm waiting on some from Bike24 in Germany...still saying unknown delivery.
    Me too.

  8. #58
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    R-2 bike says April/2015 for all models.

  9. #59
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    Quote Originally Posted by Espen W View Post
    Our own C4 103mm rims.
    Essentially a 103mm version of the 80mm rim that Borealis/Turnagain sells.
    I run them tubeless without any latex solution.
    Thanks for letting us know it was tubeless. That's impressive to say the least.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  10. #60
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    Quote Originally Posted by NYrr496 View Post
    None of that would help me... Only 10" wide tires would get me on top of snow that soft.
    I don't think that is totally true. Espen correct me if I'm wrong but it looks to me like the "powder" is only few inches deep over a marginal crust. The trick looks like it was staying on top of the crust. Not to say that in itself is not impressive but it is different than staying on top of thigh deep powder. I would not want to ride very far in that snow combination regardless of tires and rims. I would just end up collapsed on the side of the trail.
    Latitude 61

  11. #61
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    Quote Originally Posted by sryanak View Post
    I don't think that is totally true. Espen correct me if I'm wrong but it looks to me like the "powder" is only few inches deep over a marginal crust. The trick looks like it was staying on top of the crust. Not to say that in itself is not impressive but it is different than staying on top of thigh deep powder. I would not want to ride very far in that snow combination regardless of tires and rims. I would just end up collapsed on the side of the trail.
    It is approx. 30cm (1ft) of dry powder on top of a marginal layer of crust covering another 2+ft of powdery snow.
    Skinnier tires or more tire pressure would have seen me break through that crust, as evidenced by my rather clumsy attempts at walking there (I'm around 145lbs).

    It is very hard to judge snow depth and conditions from a video, so if I had just shown the section where I'm on the bike, folks could assume that it was rock hard below. That is why it is crucial to have a reference, like someone trying to walk. Next time I'll have someone trying to walk there as I ''zoom'' by on the bike.

    Here is another one from the same place:



    I think the Schwalbes work so well in conditions like this since they combine huge volume (265mm bead to bead) vs. approx 260mm for Bud/Lou with rather low (3.5mm) center and transition knobs. While a tire with taller knobs have more traction in powder, the tall knobs will cause the tire to cut into and mash the surface, especially on semi hard surfaces. They sort of create their own powder.
    Espen Wethe
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  12. #62
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    Mine 4.8" SnakeSkin Version arrived today. Will mount them on 90mm Carbon-Rims from Ican.

  13. #63
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    Quote Originally Posted by Duci View Post
    Mine 4.8" SnakeSkin Version arrived today. Will mount them on 90mm Carbon-Rims from Ican.
    Can you weigh it before you mount? Would be great to have some weight references.

  14. #64
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    Quote Originally Posted by slabber View Post
    Can you weigh it before you mount? Would be great to have some weight references.
    Yes sure. I've got the heavier version (SnakeSkin) - should weigh around 1280gr

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    Most importantly, where did you get the tires from if you don't mind sharing?

    Chris.

  16. #66
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    Quote Originally Posted by krzysiekmz View Post
    Most importantly, where did you get the tires from if you don't mind sharing?

    Chris.
    Unfortunately I had to promise not to tell where I got the tires from. But some Fatbike manufactureres already got these tires. Just the aftermarket will be delivered later (according to Schwalbe early march in Europe)

  17. #67
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    Quote Originally Posted by slabber View Post
    Can you weigh it before you mount? Would be great to have some weight references.
    Strange - 1280gr and 1375gr - maybe they are from pre-production?!

  18. #68
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    Quote Originally Posted by Duci View Post
    Strange - 1280gr and 1375gr - maybe they are from pre-production?!
    Almost 100g variance between the two... interesting, but not that unexpected? Doesn't take too much to add a few grams on tires of this size... Certainly appreciate you taking the time to weigh them, good to know, thanks.

  19. #69
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    Jumbo Jim's look to have arrived in the UK.

    https://www.facebook.com/pages/Sidew...72904326112367

    Funny because I leave for the UK in 2 days and will be out there for 3 weeks. Unfortunately, Sideways cycles will be 4 hours away from where I'm staying...

  20. #70
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    ^^^ but if you are in the same place for 3 weeks then I am sure Tim would send you some to your lodgings, no problem!

  21. #71
    Oslo, Norway
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    4.8 Jimmys at something like sub 1psi tubeless.
    Takes flotation to another realm. Utterly sick. See my previous powder vid, for example.
    (And I (167lb including the fatbike) can still ride on a plowed road without riding the sidewalls of the rim. Not that I would want to for long, though..)

    Feels like the wheels have been replaced by belts. Unstoppable traction.

    Espen Wethe
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    https://fat-bike.com/2016/06/diamant...an-pennington/

  22. #72
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    Quote Originally Posted by Flying_Scotsman View Post
    ^^^ but if you are in the same place for 3 weeks then I am sure Tim would send you some to your lodgings, no problem!
    Very true, we'll see. I will be in Weymouth so very close to Charlie the Bike Monger so I might stop in and see what he may have on hand. Been trying to contact him through email for 3 weeks to see if I can get a fatbike for a few days while I'm out but i can't seem to get a response...

  23. #73
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    Bike24 says Schwalbe is currently saying they will not be delivered until the middle of March.
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  24. #74
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    More fun at what must be sub 1 psi.
    Deep snow (sank in to my hip in some places when testing on foot).

    To get an idea about what that tire pressure looks like, see the pinch test:

    Espen Wethe
    Bicycle Engineering Consultant
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    https://fat-bike.com/2016/06/diamant...an-pennington/

  25. #75
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    Espen, How do your sidewalls hold up at those pressures. Back in the day with 120tpi Endo's and more recently with Escalators if I run low enough pressure that I get significant sidewall wrinkles when riding then my side walls start to break down. On the Escalators running tubless I now have a constant slow sealant weep at several spots along the side walls. I have been running higher pressures just to preserve tire life. The tires still have all their nubbies from the molding process but the side walls have noticable breakdown a,oong the casing tnread lines.
    Latitude 61

  26. #76
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    Quote Originally Posted by sryanak View Post
    Espen, How do your sidewalls hold up at those pressures.
    They are still in one piece, which is pretty impressive after so many miles at sub 2psi.
    It is probably due to the thin and supple Liteskin casing.
    As mentioned, I run these tubeless without any latex solution, and I have found that the rear wheel now loses pressure faster than before. The front is still perfectly fine without any Stan's. My guess is that the extreme, sustained wrinkling of the rear tire has opened up some micro pores in the rubber coating, but I'm condfident that a minimal amount (less than 2oz) of Stan's will seal it to perfection.
    Espen Wethe
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    https://fat-bike.com/2016/06/diamant...an-pennington/

  27. #77
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    If the Jumbo Jims do not start arriving soon I will be ordering Hbillies.
    It doesn't matter what I ride as long as I ride it Rubber Side Down●~●.

  28. #78
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    Quote Originally Posted by RockyJo1 View Post
    If the Jumbo Jims do not start arriving soon I will be ordering Hbillies.
    I'm still holding out with an existing order for the Jumbo Jims, as I'm looking for lightweight volume. I don't think the H-Billie is on same level. I've been riding Snowshoes for two seasons and would stay away from that basic tread pattern personally. Not enough cornering knobs. I recently purchased a Vee Bulldozer which is better but would still prefer a more aggressive full volume front tire without the weight of the Bud - hoping to see the Juggernaut 4.5 soon.

  29. #79
    The White Jeff W
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    Re: Jumbo Jim

    Quote Originally Posted by RockyJo1 View Post
    If the Jumbo Jims do not start arriving soon I will be ordering Hbillies.
    I like mine a lot. I had planned to get JJ's when they come out but the H Billies have been great. I'll be putting a Vanhelga up front now that we're into deeper snow season but for light snow & dirt the H Billies are excellent.
    No moss...

  30. #80
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    Quote Originally Posted by jeffw-13 View Post
    I like mine a lot. I had planned to get JJ's when they come out but the H Billies have been great. I'll be putting a Vanhelga up front now that we're into deeper snow season but for light snow & dirt the H Billies are excellent.
    What size rim are you running? I have 65mm wondering about rim protection.
    It doesn't matter what I ride as long as I ride it Rubber Side Down●~●.

  31. #81
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    Quote Originally Posted by RockyJo1 View Post
    What size rim are you running? I have 65mm wondering about rim protection.
    i'm running one as well, on marge lites. I've gone as low as 3-4 psi in the snow without issue, zero self steer. I'll run it between 12-14 psi in the dirt, generally.
    Last edited by Gigantic; 02-24-2015 at 05:01 PM.

  32. #82
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    Quote Originally Posted by RockyJo1 View Post
    What size rim are you running? I have 65mm wondering about rim protection.
    80mm Sun Ringle Mulefut
    No moss...

  33. #83
    ebnash
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    Well, I've pulled the trigger while visiting the UK and purchased a pair from Sideways Cycles. Can't wait to get them home and mounted on the Fatty in a couple weeks time.

  34. #84
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    Nice ! Which ones ?

    Keen to hear about the 4.8" liteskins... I need a high volume lightweight tyre for this years desert race and Buds are not going to pass the weigh in.
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  35. #85
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    Jumbo Jim

    Do the liteskins have a different bead. Neither size are TL


    Pedaling

  36. #86
    ebnash
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    I ordered the 4.8 Liteskins as that is all they had.

    All the Jumbo Jims are EVO tires so they are TL ready. The shop I ordered them from has set up multiple sets Tubeless with ease. I'm not back home in the states for a couple weeks yet so I won't have any reports soon.

    It will be interesting because these should actually be lighter than my Mammoths and I'm not planning on using any sealant at first as I have Mulefut rims that are TL ready as well. Plus, I am going to ditch the Gorilla tape and try something like the Tyvek tap to seal the spoke holes. I should end up with measurablely less rotating mass.

  37. #87
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    Jumbo Jim

    That's what I had figured, but Schwalbe kinda sounds like the beads are different and TL is easier tubeless. Thanks


    Pedaling

  38. #88
    ebnash
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    Quote Originally Posted by rjedoaks View Post
    That's what I had figured, but Schwalbe kinda sounds like the beads are different and TL is easier tubeless. Thanks


    Pedaling
    It is a little confusing and they are different, but I don't know the specific details.

    Snakeskin tire is "TL Easy"
    Liteskins is just "TL Ready"
    I have no idea what makes the TL Easy, easier but every schwalbe tire I've used that is TL ready has been a cinch to set up. Of course, it also depends on the rim...

  39. #89
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    Does the liteskin casing feel thin ?
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  40. #90
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    Quote Originally Posted by ebnash View Post
    Well, I've pulled the trigger while visiting the UK and purchased a pair from Sideways Cycles. Can't wait to get them home and mounted on the Fatty in a couple weeks time.
    Great to hear that Tim sorted you out!

  41. #91
    ebnash
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    Quote Originally Posted by ozzybmx View Post
    Does the liteskin casing feel thin ?
    I will let you know when they show up at my Hotel. I can put a caliper on it and get an actual value if you like.

  42. #92
    ebnash
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    Quote Originally Posted by Flying_Scotsman View Post
    Great to hear that Tim sorted you out!

    Yes, he was extremely easy to deal with and quick to respond via email. I would definitely buy from him again when out here. Too bad I am so far away as I would like to visit his shop.

  43. #93
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    I am thinking group buy via ebnash?

  44. #94
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    Quote Originally Posted by jonshonda View Post
    I am thinking group buy via ebnash?
    I heard there is a bunch of to be had in Amsterdam, if everyone would kick in a few bucks to get me there I promise I would bring/ship a bunch back

  45. #95
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    Quote Originally Posted by bdundee View Post
    I heard there is a bunch of to be had in Amsterdam, if everyone would kick in a few bucks to get me there I promise I would bring/ship a bunch back
    You would come back 15lbs heavier, and most certainly test positive for most every drug known to man. Sans tires.

  46. #96
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    Quote Originally Posted by jonshonda View Post
    I am thinking group buy via ebnash?
    Not sure how that would work... He would need to ship them to the states and I have no idea how much that would be. To be honest, I may have paid more because of VAT since he sold them to me while in the UK. I would be happy to put any of you in touch with Sideways cycles and I think if enough of you got together, maybe their would be a break in pricing. You would need to request he remove VAT and get a shipping quote.

    Erik

  47. #97
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    Jumbo Jim

    Just picked up a pair of liteskin 4.0's from my LBS. Got lucky. They're shipping OE on Felts and the guy that bought one wanted studded tires for the ice festival that Anchorage has been this winter. I got the JJ's off his bike. Getting mounted up tubeless on some 65mm Nexties as we speak. Pix as soon as I get it back from the shop. I know, I know....pics or it didn't happen!


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    two wheel livin'..

  48. #98
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    Quote Originally Posted by anortherncrazy View Post
    Just picked up a pair of liteskin 4.0's from my LBS. Got lucky. They're shipping OE on Felts and the guy that bought one wanted studded tires for the ice festival that Anchorage has been this winter. I got the JJ's off his bike. Getting mounted up tubeless on some 65mm Nexties as we speak. Pix as soon as I get it back from the shop. I know, I know....pics or it didn't happen!


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    Did you weigh them by any chance ?

  49. #99
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    Quote Originally Posted by anortherncrazy View Post
    Just picked up a pair of liteskin 4.0's from my LBS. Got lucky. They're shipping OE on Felts and the guy that bought one wanted studded tires for the ice festival that Anchorage has been this winter. I got the JJ's off his bike. Getting mounted up tubeless on some 65mm Nexties as we speak. Pix as soon as I get it back from the shop. I know, I know....pics or it didn't happen!


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    nice!!!!
    ptarmigan hardcore

  50. #100
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    Re: Jumbo Jim

    Quote Originally Posted by anortherncrazy View Post
    pics or it didn't happen!
    Pics *on a scale* or it didn't happen

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