Road Cycling - Changing chainring sizes...question.

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Rippin

07-20-03, 10:18 PM

Hi all,

I'd like to change my inner chainring from a 42 to a 39. Once I make the switch will I need to make any derailleur or chain adjustments? I'm thinking that I shouldn't have to adjust anything, but I thought I'd check with you guys first. :D

sch

07-20-03, 10:32 PM

Should be a transparent change. See what the extra chain does when you
are in the 39/12 (11?) tooth configuration. The B screw may need a bit of
adjusting but probably not. Steve

Rev.Chuck

07-21-03, 10:00 PM

You may also need to set the inner limit screw just a bit tighter and maybe the cable adjuster one click tighter as well. This is just to help the chain from jumping clear past the smaller ring.

Rippin

07-21-03, 11:37 PM

Thanks, all, for the replies.