Tyre Size?! (Potentially stupid question I'm sorry)

chrisdouglas
chrisdouglas Posts: 114
edited April 2015 in MTB workshop & tech
Right so I need to replace my tyres. I've been using my bike for both road and trails, and now I'm finding that the grip I had when I first got my bike has declined and so I need to buy some new tyres. So right now it runs 29x2.2 Maxxis Ikon tyres. Can I run 29x2.4 Maxxis Arsents without any trouble? The rims are WTB SX23, 29". In my head it shouldn't be a problem but can anyone confirm this will be fine?
2013 Kona HeiHei - 29 Life

http://www.lakesrider.weebly.com

Comments

  • The Rookie
    The Rookie Posts: 27,812
    You are more likely to run into frame and fork clearance problems than have an issue with the width on the rim which with 23mm internal width rims would be fine.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • wilberforce
    wilberforce Posts: 315
    Hi, the problem will not be the rims as much as the frame clearance for the 2.4 size.

    I assume by Arsents you actually mean Ardents and they are pretty big so may have frame clearance issues
  • Sorry yeah I did mean Ardents. I'm typing on the phone and I'm sure we all know how that usually goes haha so I'm better off sticking with the 2.3 format to avoid issues with frame and fork then?
    2013 Kona HeiHei - 29 Life

    http://www.lakesrider.weebly.com
  • The Rookie
    The Rookie Posts: 27,812
    Measure frame and fork clearance to your existing tyres and see how the extra width and height is likely to affect them, you currently need at least 15mm clearance to consider using the 2.4's.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • Maxxis tyres come up fairly narrow imo, 2.35 minions are more like a 2.2.
  • Dirtydog11
    Dirtydog11 Posts: 1,621
    Great resource for "actual tyre sizes" here

    http://www.reifenbreiten-datenbank.de

    According to the above...

    2.2 Ikons come out at around 52-53mm wide, whilst 2.4 Ardents measure around 60-61mm.
  • warpcow
    warpcow Posts: 1,448
    Maxxis tyres come up fairly narrow imo, 2.35 minions are more like a 2.2.

    This has pretty much all changed in the last couple of years. The Minion DHF, for example, now comes in 2.3 and 2.4 and is pretty true to size. The Ardent has always been pretty much true to size (the 2.25 is noticably larger than a 2.35 Minion).