Upgrading to 10 speed

weapons Posts: 367
edited June 2011 in Workshop
I'd like to upgrade my winter trainer to 10 speed. Am I right in thinking that the components i need for this are: shifters, cassette and chain?

The one that confuses me is the rear mech - at a Sigmasport mechanic course I went on, the mechanic said that the rear mech just works between the high and low limits and so can be used as 10sp compatible, and yet new mechs are marketed as 9 or 10 sp etc.

Is that right? Many thanks in advance.


  • Slack
    Slack Posts: 326
    The rear mech will be fine. It's movement is determined by the shifter.
    Plymouthsteve for councillor!!
  • yocto
    yocto Posts: 86
    Slack wrote:
    The rear mech will be fine. It's movement is determined by the shifter.

    what he said.
  • maddog 2
    maddog 2 Posts: 8,114
    that is true

    but don't use a Shimano MTB 10spd mech, or SRAM for that matter, as the pull ratios are different.

    front mech will be fine but 10spd are very slightly narrower.
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • jomoj
    jomoj Posts: 777
    yup - correct. I have '9 speed' front and rear shimano mechs running with 10 spd chain, cassette, chainset and shifters. Until a recent upgrade I had a 9 speed chainset and it worked fine.

    Incidentally, on another bike I have a 10spd chainset and chain running on a 9 speed cassette - no problems at all.
  • weapons
    weapons Posts: 367
    Great - thanks all. That spares me a bit of cash!