Anyone else have issues with running 2.2 tires and rubbing on the fork/frame?- Mtbr.com
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  1. #1
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    Anyone else have issues with running 2.2 tires and rubbing on the fork/frame?

    This is driving me nuts.


    I replaced the stock SB8 tires with Continental Trail King 2.2, wanted something just a little beefier, was told that it should be fine.

    I should also note that I replaced the front suspension with a RockShox Recon Silver- but the darn tire rubs the fork under compression and turns..not JUST compression, but when you hit a steep hill while making a turn, you can hear the tire knobs rubbing a bit.

    Do I need a wider wheel if I plan to run a tire just a fraction larger than the stock 2.1? I noticed that there seems to be quite a bit of tortional flexion on the Weinmann.

  2. #2
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    This is on a Guardian with the Weinmann Bull Disc wheels right? That shouldn't happen. Is it rubbing the side of the fork? I was running a knobby 2.4 tire until recently with the stock XC28 fork without issue and plenty of room even under full compression. You should get your fork checked out.

  3. #3
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    I have 2.4 Conti's on the front and 2.1 on the back of the Guardian and have never had an issue with the stock XC28 or wheels. Can't comment on your fork, but that doesn't sound right.

  4. #4
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    Quote Originally Posted by fooldall1 View Post
    This is driving me nuts.


    I replaced the stock SB8 tires with Continental Trail King 2.2, wanted something just a little beefier, was told that it should be fine.

    I should also note that I replaced the front suspension with a RockShox Recon Silver- but the darn tire rubs the fork under compression and turns..not JUST compression, but when you hit a steep hill while making a turn, you can hear the tire knobs rubbing a bit.

    Do I need a wider wheel if I plan to run a tire just a fraction larger than the stock 2.1? I noticed that there seems to be quite a bit of tortional flexion on the Weinmann.
    This is not uncommon on 29ers with a QR. Is your new Recon a QR or a 15mm Maxle design?

    If QR, then check to ensure that the QR is really tight. Like overly tight almost.

    Also, you may want to check spoke tension. I've seen under-tensioned wheels flex more under the same circumstances you've described.

    Hope that helps,

    Jeremy
    Please Note: I no longer work for Airborne. If you have an Airborne question or problem please contact them directly.

  5. #5
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    Great suggestions, guys- thanks.. BiGDaddyFlye (Jeremy, if memory serves), yes - it's a QR. I'll try tensioning the wheel spokes a bit more and REALLY tightening the QR and see if it helps. It's really noticeable when standing and grinding up a steep hill and turning the wheel. I tried a Contio 2.4 on the front and it was REALLY bad. I was thinking the width of the wheel pushes up the already high profile of this tire...but, hey, I'm just a noob at this stuff and learning. Thanks for the help guys.

  6. #6
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    <a href="https://www.flickr.com/photos/[email protected]/15805192084" title="20150128_093305 by Jason Randall, on Flickr"><img src="https://farm8.staticflickr.com/7328/15805192084_a0b47857ae_s.jpg" width="75" height="75" alt="20150128_093305"></a>

    Hope you can see this, here is the Guardian +

  7. #7
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    I'll echo BDF's suggestion regarding the QR and spoke tension.

    I ran Kenda Nevegal 2.3s on my Guardian, with a Reba fork and didn't experience any tire rub. You'll need to keep your spokes tensioned and wheels true, but you should be able to run a wider tire in there.

    Guardian, Reba, Nev 2.3's:



    Good luck!
    Last edited by jhazard; 02-02-2015 at 10:32 AM.
    Cool BandolArrow

    Jerry Hazard website

  8. #8
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    I echo just about all mentioned above. QR spec and spoke spec is big here. Generally the fork has the most tire forgiveness on the bike, the back end being the place with the tightest tolerance. Back in the day I ran DH tires on my XC bike without issues (26.x2.35 on XC forks when 26x1.95 was the norm) My bet is you are getting some slipping and twisting in the spokes. Remember to tighten only incrementally on the spokes!

  9. #9
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    Quote Originally Posted by fooldall1 View Post


    Hope you can see this, here is the Guardian +
    Are you sure that your new fork is for a 29" tire and not a 27.5" or 26" fork?

    Also, don't just go tensioning your spokes unless you know what your doing. If you don't feel like reading up and understanding how spoke tension works, I would take it to a bike shop to check.

  10. #10
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    OH WOW! I just clicked on the picture and I think I agree with you TM08853. That does not look like the clearance I would expect even with a slightly bigger wheel. Where did you get this new fork?

  11. #11
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    Quote Originally Posted by RSDSav View Post
    OH WOW! I just clicked on the picture and I think I agree with you TM08853. That does not look like the clearance I would expect even with a slightly bigger wheel. Where did you get this new fork?
    Maybe it's just the picture angle.

  12. #12
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    It could be, but that is very tight. I would say if this was ordered online/mail order, double check your box, packing slip, receipt, etc. That little clearance would have me at least give it a quick double check to make sure it's right. It might be right, but it doesn't hurt to take a quick look! Do you have your old fork to compare it to as well?

  13. #13
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    Here is a picture of mine with a mud-caked On-One 2.4 on the front. Like others said, it's possible your fork is for a smaller wheel or maybe those 2.2 Contis are really tall!

    I just saw the front view of your tire and fork. Wow! That is really close.
    Attached Thumbnails Attached Thumbnails Anyone else have issues with running 2.2 tires and rubbing on the fork/frame?-20140812_090320.jpg  


  14. #14
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    It could be angles, lighting, etc, but to me it almost looks like a 29" wheel in a 26" fork.

    This other image of yours on Flickr makes me wonder:

    https://www.flickr.com/photos/131076...3/16241800187/

    Jeremy
    Please Note: I no longer work for Airborne. If you have an Airborne question or problem please contact them directly.

  15. #15
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    Quote Originally Posted by BigDaddyFlyer View Post
    It could be angles, lighting, etc, but to me it almost looks like a 29" wheel in a 26" fork.

    This other image of yours on Flickr makes me wonder:

    https://www.flickr.com/photos/131076...3/16241800187/

    Jeremy
    That is the picture that made me wince a little and scratch my head wondering...

  16. #16
    CoolArrow
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    That does look pretty close. Was searching for a better image from my Guardian, but this is all I can come up with offhand. I could slide a finger between the fork brace and the tire.

    Anyone else have issues with running 2.2 tires and rubbing on the fork/frame?-fork-clearance.jpg

    I'm guessing that fork might really the issue...
    Cool BandolArrow

    Jerry Hazard website

  17. #17
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    Any recent word on your fork/tire issue?

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