Advertise on

User Tag List

Results 1 to 2 of 2
  1. #1
    Junior Member
    Join Date
    Apr 2008
    0 Post(s)
    0 Thread(s)

    Dura Ace Crank Switch

    I am running a 170 mm DA crank (7400 I think) with DA 7 speed drive train. I would like to switch to 172.5 cranks. What type of issues will I face if I run a diffrent crank set? What chain issues might pop up? Or, am I fine running any DA crank and keep with a seven speed chain?
    Thanks all,

  2. #2
    Low car diet JiveTurkey's Avatar
    Join Date
    Aug 2007
    Corvallis, OR, USA
    My Bikes
    2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
    2 Post(s)
    0 Thread(s)
    Unless it's the exact model crank, there's a possibility you'll need to replace the bottom bracket because 1) it may use a different spindle type (square taper, splined, external/integrated) or spindle length. BB sizes:

    The bottom bracket type must match and the length should match (for optimal chain line) the crank, but the chainrings won't care too much about the chain that is used on them.

Posting Permissions

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