Are cranks 8 & 9 speed specific?

Gwaredd
Gwaredd Posts: 251
edited May 2010 in MTB workshop & tech
Morning all.

I have an FSA V-Drive crank fitted to my bike & am looking to change from 8 speed to 9 speed. Will my current crank be OK? I can't see anything regarding 8 or 9spd on any of the online shops, so I guess they fit both?

Any pointers would be great.
Cheers,

Gwaredd

http://www.iamkonki.com/

Comments

  • nicklouse
    nicklouse Posts: 50,673
    should be fine.
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  • diy
    diy Posts: 6,473
    It might be fine, but if the teeth are worn from the 8sp, then the 9sp chain being narrower will probably suck. So then you either need to reprofile the teeth or replace the rings.


    I just did mine and ended up changing crank too, I had really bad chain suck in the smallest ring and then closer inspection showed the others were pretty worn too.
    because the cost of an XT crank vs new chain rings meant it was a no brainer. Three chain rings at 40-50 quid vs a budget crank at 40 quid or a new decent crank at 100.

    But having done two rides now with a 34/22 its well worth it.

    I would certainly budget for changing the small chain ring
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  • Gwaredd
    Gwaredd Posts: 251
    Cool. Cheers guys.
    Cheers,

    Gwaredd

    http://www.iamkonki.com/

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