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  1. #1
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    Will a 2.35 Bontrager XR4 26 fit the rear of a Fuel Ex?

    Hi guys. I on the verge on ordering two 26x2.35 Bontrager XR4 Tlr tires for my 2013 Fuel Ex but I am not sure if the rear will fit. Has anyone tried it?

  2. #2
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    There have been posts on this in the past.. not the 2013 model but pretty much all others. And from what I remember, it worked great.

    But, why 2.35 in the rear? You doing downhill only?

    Sent from my DROID RAZR using Tapatalk 4

  3. #3
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    I do a little bit of everything. Uphill, downhill (not anything extreme), trails etc. I am thinking about 2.35 in both tyres because I am planning on running them both with lower pressure in order to get a more plush ride. Also considering that I am a rather heavy guy I would like rear tyre to be strong. And finally I prefer my bike to symmetric (OCD).

    Also on the review below they run both tyres 2.35 and they seem to like it. Trek Fuel EX 9.9 2013 ? First Ride Review - BikeRadar

  4. #4
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    I discovered last night, to my surprise... that the Bontrager 29x2.3 XR4 (big beefy tire) actually fits on the rear of my 2013 Superfly 100-- and on a wide Flow EX rim, at that. Sweet!

  5. #5
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    Great news. Tomorrow I will go to my LBS to fit them and convert them to tubeless so I will come back with an update and photos.

  6. #6
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    2.35 installed both in front and rear. This is how the rear looks.


  7. #7
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    It's tighter but it should work.

    Sent from my DROID RAZR using Tapatalk 4

  8. #8
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    It is tight for sure but not too much. After all the difference between 2.2 and 2.35 is only 6mm in total so 3mm in each side. The only question is how will it work in the mud but I will only know once I try.

  9. #9
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    Hi again. After 2 weeks I have decided to return the 2.35 under the Bontrager 30 day return policy and put the 2.20 XR4 version. Don't get me wrong the tires were fine, I didn't experience any tire rubbing but I am worried about what will happen in muddy conditions or if I break a spoke for example. The clearance is about 3mm in each side which seems enough but I don't want to risk my chainstay if something goes wrong.

    Anyway, I will post some photos soon in order to compare the difference between the two tire sizes.

  10. #10
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    Will a 2.35 Bontrager XR4 26 fit the rear of a Fuel Ex?-20131004_230057-2-.jpg 2.20 (up) vs. 2.35 (down). Not a huge difference but every mm counts especially in muddy conditions. Name:  ixu5 (2).jpg
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Size:  45.4 KB
    Last edited by Paris Galanis; 10-04-2013 at 09:34 PM.

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