Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Newbie
    Join Date
    Oct 2009
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Giant TCX, whats the widest tire you have fit?

    I picked up a Giant TCX a couple of weeks ago and am having a blast on it! I'm hoping to do the endurance mtb races on this bike, I'm in north Tx and the endurance courses end up being mostly un-technical. I need to know what the fattest tire I can run on this frame is to make it as trail-worthy as possible, thanks!

  2. #2
    Life is good RonH's Avatar
    Join Date
    Jan 2001
    Location
    Between Lecanto and Hernando Florida, 6 miles west of the Withlacoochee Trail
    My Bikes
    I've had several since 1999 but have settled on my beloved 2001 Litespeed Tuscany and my latest, a 2013 Cannondale CAAD 10.
    Posts
    13,518
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    I have two sets of tires (good ones: 700x32 Michelin Mud 2 and cheap ones: 700x35 Kenda Kross). There's still lots of room for a fatter tire, maybe a 700x43??
    My bikes --> 2001 Litespeed Tuscany---2013 Cannondale CAAD 10 2 (5) "Racing Edition"

    Life is like a 10-speed bicycle. Most of us have gears we never use. ~ Charles Schultz

  3. #3
    Senior Member
    Join Date
    Jul 2005
    Location
    Dublin, OH
    My Bikes
    Serial bike flipper
    Posts
    327
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I haven't tried it, but by looking at it, I'd be surprised if my '08 TCX could fit bigger than a 38 between the chainstays. I had a 34 in there, and it wasn't exactly roomy.

  4. #4
    Newbie
    Join Date
    Oct 2009
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks ya'll, I think its going to come down to the actual width of the tire. I was talking with the shop owner and he says he barely fit 35's on it, but I have 35's on there now and there is tons of room left

    seat boy, what tire were you running?

  5. #5
    I suck, but you're worse
    Join Date
    Jun 2005
    Location
    LA
    My Bikes
    Motobecane Fantom Uno-Got rid of the rest when I moved to LA:(
    Posts
    672
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It will also depend on your rims and which part of your frame will be first to get hit by the tire. If the seat or chain stays are gonna be hit first use a narrower rim and this will save a couple mm on tire width. if the rear bridge will hit first use a wider rim and this will save you a couple mm from the tire height.
    The rim will only affect the tire width or height by 1-3mm. Also knobbier tires will tend to be wider and taller than tires without knobs. You can save a little room on height too if your tires don't have tall center tread.

    keep in mind 5mm is less than 1/4 inch width. divide this by two=1/8 inch. do you have at least this much room between tire and frame on all sides? If so then you should be fine with the 40mm tires, just be aware of the knob height.

  6. #6
    Senior Member
    Join Date
    Jul 2005
    Location
    Dublin, OH
    My Bikes
    Serial bike flipper
    Posts
    327
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I was using Hutchinson Acrobats (a hybrid tire). Nominally a 37, they actually measure about 32 at the casing and 34~35 at the knobs.

    Quote Originally Posted by go::ahead View Post
    thanks ya'll, I think its going to come down to the actual width of the tire. I was talking with the shop owner and he says he barely fit 35's on it, but I have 35's on there now and there is tons of room left

    seat boy, what tire were you running?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •