New chain is a good idea, Cy. (As you undoubtedly know) they stretch with
time. But, the rear sprockets don't usually wear nearly as much as the front
chainrings. So, if the rear sprockets were worn enough that a new one causes
skipping, the chainrings are probably pooched, too. If one gets a new chain,
the chainrings should be replaced too (or at least inspected for wear), or
they'll cause all sorts of skipping once the new chain is installed.
My guess would be that the problem is more likely derailleur mis-allignment.
On most derailleurs, there's a little barrel-like adjuster, right where the
cable enters the derailleir. Twisting that one way or the other to re-allign
the derailleur might work. I'm assuming that you have indexed shifting, Collin
(as opposed to friction shifters - indexed "clicks" the derailleur up and
down). If you have friction, and you've got it so the gears are quiet when you
pedal, then it's probably the chain.
regards,
frank the bike courier.
Cy Galley wrote:
> If you changed the sprockets then you need to change the chain. Old
> sprockets or old chains on new don't fit and the chain jumps.
>
> Another thing is the adjustment of the derailleur. It has to be dead on so
> that the chain doesn't skip or jump as well. There is generally a little
> knob somewhere in the shifting cable to adjust the length.
>
> Cy Galley - www.qcbc.org Webmaster Quad Cities Bicycle Club among other
> things.
>
--
"The optimist thinks this is the best of all possible worlds. The pessimist
fears it is true." -J. Robert
Oppenheimer
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