Alternate Cable Routing - Switching 10sp to 9sp

TheStone
TheStone Posts: 2,291
edited March 2009 in Workshop
Has anyone tried this? Does it work and are there any issues?
http://www.sheldonbrown.com/derailer-ad ... #alternate

I'm thinking of trying to use a 9sp Mtb cassette on a 10sp Ultegra setup for the Alps (in particular for Ventoux on the Etape).

Would a 10sp chain work ok on a 9sp cassette?

thanks
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Comments

  • thetrotter
    thetrotter Posts: 258
    TheStone wrote:

    Would a 10sp chain work ok on a 9sp cassette?

    thanks

    See here:

    http://www.sheldonbrown.com/speeds.html
  • andy_wrx
    andy_wrx Posts: 3,396
    A 10sp chain will happily work on a 9sp cassette.

    The CTC article re mix&match http://www.ctc.org.uk/DesktopDefault.aspx?TabID=3946
    says that a 10sp shifter with an old DA mech will move a pitch of 4.36mm, whereas pitch of a 9sp cassette is 4.35mm : looks close enough to me !

    Are you thinking of a 30+ tooth MTB cassette ? Then you'll need a MTB rear mech, or a long cage triple one - I can't see an Ultegra short cage double/compact rear mech working, that'll only go upto 28 (Shimano officially say 27 IIRC)

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