Advertise on Bikeforums.net



User Tag List

Results 1 to 3 of 3
  1. #1
    Senior Member
    Join Date
    Oct 2011
    Location
    Denver, CO
    My Bikes
    Airborne, Quinta Roo Kilo, Performance R203
    Posts
    107
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Minimum Tire Clearance

    I just measured 38mm between my brake calipers (when closed on my rim) and 36mm between my my chain stays. Is that enough room to put a pair of Kenda Kwicker 700cx32 on my Alexrims R450?

    Originally I thought I would need to put some bosses on my frame for cantilevered brakes, but it seems like my frame is the limiting factor and not my brakes. Why is it that everyone uses them for CX?

  2. #2
    Team Water Andy_K's Avatar
    Join Date
    Jan 2008
    Location
    Beaverton, OR
    My Bikes
    2013 Kona Jake, 2008 Kona Major Jake, 2013 Kona Jake the Snake, 1999 Kona Muni Mula, 2012 Ridley Excalibur, 2008 Surly Long Haul Trucker
    Posts
    7,022
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Personally, I'd say that's too tight. You might be able to get it to "work" in the limited sense of being able to spin the tire without making contact with the frame, but any mud at all and it's going to start dragging. My CX frame, to give you a point of reference, has 55-60mm of space between the chain stays.

  3. #3
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    3,207
    Mentioned
    47 Post(s)
    Tagged
    0 Thread(s)
    cantilever calipers are working off pivots, on the frame below the radius of the rim.

    so frame cross braces and fork blades can allow better clearance
    without the brakes being functionally, compromised.

    you probably can do fine on dry courses , or really thin mud..
    or have a friend with a hose ,
    and a second bike for when sticky Mud starts to clog up the wheel turning ,
    that's when the 2 bike hand off helps keep your speed up .. at the front.

    Won't have to ride a mud laden bike , slowing you down.
    Last edited by fietsbob; 11-01-11 at 04:53 PM.

Posting Permissions

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