Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    Newbie
    Join Date
    Aug 2007
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Spacing for fixed

    Hi, there's a nice 531 road frame I've been looking at, for my first conversion. It has 135mm rear spacing. Can anybody tell me if this is an issue?

    Many thanks,
    Che.

  2. #2
    jerk store mathletics's Avatar
    Join Date
    Mar 2006
    Location
    Boston
    My Bikes
    '80s Chimo Garbage fixed 36/14, Centurion fixed 42/17
    Posts
    605
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I think you'll either need some spacers on your axle or a fixed hub designed for 135mm spacing. Or you can flex your stays inward.

  3. #3
    Senior Member
    Join Date
    Sep 2006
    Location
    Van BC
    Posts
    3,745
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    To maybe clarify mathletics' answer, yes it is an issue that you could ignore if your frame was spaced 120mm, but it's a relatively miinor issue with at least three simple solutions. The simplest for a beginner is to buy a wheel with a fixed hub that is spaced out to 135mm. usually your lbs can do this for you by adding washers to a fixed hub thats spaced 120. I might measure the spacing myself before buyiong a hub though since sheldon says 135mm is rare for a road frame. http://www.sheldonbrown.com/harris/wheels1.html
    Last edited by mander; 08-18-07 at 02:27 PM.

  4. #4
    jerk store mathletics's Avatar
    Join Date
    Mar 2006
    Location
    Boston
    My Bikes
    '80s Chimo Garbage fixed 36/14, Centurion fixed 42/17
    Posts
    605
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks mander. I knew only that it could be remedied but not exactly how to do it.

  5. #5
    jack of one or two trades Aeroplane's Avatar
    Join Date
    Jun 2005
    Location
    Suburbia, CT
    My Bikes
    Old-ass gearie hardtail MTB, fix-converted Centurion LeMans commuter, SS hardtail monster MTB
    Posts
    5,635
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by che77 View Post
    Hi, there's a nice 531 road frame I've been looking at, for my first conversion. It has 135mm rear spacing.
    I'd double and triple-check that spacing with a ruler before I went out and bought a hub/wheel if I were you. 135mm is standard spacing for mountain bikes, but it pretty damn rare for road bikes.

    Also, since it is steel, you could take it to a (good) shop, and have them cold-set the stays to 120mm for you. Probably costs less than a 135mm hub (if that is indeed the size).
    Quote Originally Posted by Dr Irwin Goldstein
    Men should never ride bicycles. Riding should be banned and outlawed. It is
    the most irrational form of exercise I could ever bring to discussion.

  6. #6
    Stinky McStinkface exfreewheeler's Avatar
    Join Date
    Aug 2006
    Location
    Pa.
    My Bikes
    Clemente Custom(not built-up), TI Raleigh Record SS, VitaSprint Mixte SS, IRO S.E.(coming) Ibex Trophy Pro
    Posts
    943
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Harris Cyclery can convert one of their rebadged Formula hubs which they normally sell pretty cheap for just $5 more. I have a set of their hubs and they're sweet!

    http://sheldonbrown.com/harris/fixed-hubs.html#harris
    Because, yeah... uh huh! Umm, yeah!

  7. #7
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Cross and some touring 700C frames are spaced at 135mm. Make certain a 42mm chainlined hub will work. Your frame may not work with a 42mm chainline crankset due to ring clearance issues. A 135mm singlespeed specific fixed/free hubs have chainlines even further out.

  8. #8
    Newbie
    Join Date
    Aug 2007
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks all. I should have described the frame as a tourer. As it goes, I think I'll take something a bit for my fixed. Thanks again!

  9. #9
    THIS SPACE FOR RENT
    Join Date
    Jan 2006
    Posts
    2,849
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    531 touring frames are worth bucks these days, if you got your hands on this frame and it wouldn't be unethical to flip it, you could probably buy or trade for a pretty good frame that would be easier/better for fixed.
    "I don't buy new frames, it just encourages them."

    -T.G.

  10. #10
    Senior Member Steev's Avatar
    Join Date
    Jul 2005
    Location
    Backwoods of Ontario
    Posts
    2,137
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Here's a question I've been pondering. If you space the hub out from 120mm to 130mm or 135mm are you putting yourself at risk of breaking axles like 8 speed freewheel bikes were prone to do? Seems like you'll have a similar amount of unsupported axle.

  11. #11
    THIS SPACE FOR RENT
    Join Date
    Jan 2006
    Posts
    2,849
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Steev View Post
    Here's a question I've been pondering. If you space the hub out from 120mm to 130mm or 135mm are you putting yourself at risk of breaking axles like 8 speed freewheel bikes were prone to do? Seems like you'll have a similar amount of unsupported axle.
    Basically, but in practice it's not a huge problem. Track axles are pretty sturdy, and the load is balanced evenly if you hit a pothole or whatever.
    "I don't buy new frames, it just encourages them."

    -T.G.

Posting Permissions

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