Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    Have bike, will travel Barrettscv's Avatar
    Join Date
    Feb 2006
    Location
    Windy City
    My Bikes
    A road bike for every purpose
    Posts
    8,943
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    Is a 10 speed chain compatable with a 9 speed crankset

    I'm upgrading an older steel framed Trek 400 with a modern drivetrain.

    I would like to use a touring triple like this Sugino XD 600 : http://www.velo-orange.com/suoldlotr.html

    I'm also considering older 9 speed Ultegra triples.

    The bike will have a 10 speed cassette & chain. Will the chain shift properly on a 9 speed crankset?

    Michael

  2. #2
    Senior Member
    Join Date
    Jun 2008
    Location
    San Diego
    My Bikes
    2006 Bianchi 928 Record and 2002 Bianchi Axis 1x9
    Posts
    206
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Most of the cranksets sold now are 9/10 compatible. I've never had a problem with it. My understanding is that the ring widths have not changed from 9 to 10 speed. It's only the outside width of the chain which was reduced because of the spacing between the rear cogs. The distance between chainrings is the same.

    If you have the option, I'd run a 10spd fd. But if you get a killer deal on a 9spd fd, it won't cause issues. I just suspect that the 10spd will be a little bit better.

  3. #3
    Guppy NiMO189's Avatar
    Join Date
    May 2009
    Location
    Duluth, MN
    My Bikes
    2003 KHS Flite 500, c1973 Batavus Tour de l'Europe FW conversion, 2010 C'dale CAAD9 'cross
    Posts
    82
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    According to everything I've read, jason is right, the inner diameter of the chain is unchanged and only the outer width has changed. I would go as far as to assume that a nine-speed FD should work fine, as the difference in outer diameter between nine and ten-speed chains is about .6mm (again, according to what I have read).

  4. #4
    Have bike, will travel Barrettscv's Avatar
    Join Date
    Feb 2006
    Location
    Windy City
    My Bikes
    A road bike for every purpose
    Posts
    8,943
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jasonrobo02 View Post
    Most of the cranksets sold now are 9/10 compatible. I've never had a problem with it. My understanding is that the ring widths have not changed from 9 to 10 speed. It's only the outside width of the chain which was reduced because of the spacing between the rear cogs. The distance between chainrings is the same.

    If you have the option, I'd run a 10spd fd. But if you get a killer deal on a 9spd fd, it won't cause issues. I just suspect that the 10spd will be a little bit better.
    Thanks, I was concerned that the 10 speed chain was too narrow for the 9 speed chainring spacing.

    Michael

  5. #5
    Senior Member
    Join Date
    May 2004
    Location
    Wilmington, DE
    My Bikes
    2003 Specialized Hardrock, 2004 LOOK KG386i, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1
    Posts
    8,849
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I've run a 9 speed front derailler with a 10 speed chain and it does work. Shifting is slightly quicker and smoother using a 10 speed front derailler though. This is all on a 9/10 speed compatible Stronglight crank.

Posting Permissions

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