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9 speed v 8 speed chainset(3 posts)

9 speed v 8 speed chainsetMichaelM
May 1, 2003 2:10 PM
I currently have a 9 spd set up (105 c/s, cassette, f/r mech etc), is there any reason why I can't put an 8 speed chainset on????? I know that on an mtb a 9spd f/m is narrower than an 8 spd.

Reason being my cranks are 172.5, whch I'd like to change to 170's.

Thanks
re: 9 speed v 8 speed chainsetRusty Coggs
May 1, 2003 4:22 PM
No problem.Use a 9 speed chain on it.You'll need the correct BB too.
They 8 to 9 speed upgrade kits....TFerguson
May 2, 2003 2:41 AM
from Performance, etc. recommend (but do not include) changing the small ring on a double.
TF