I cleaned and greased the pulley wheels on my 9-speed Chorus rear der (10-speed cassette) but when I backpedal, the chain still catches sometimes and the jockey pulley is seldom directly below it's corresponding cog in the cassette, especially in the lowest gears. It's more to the outside. Does that just go with the territory of having a 10-speed cassette and a 9-speed derailer, or would replacing the pulley wheels help (or something else entirely)? The derailer is four years old and has maybe 15,000 miles on it.
jockey pulley is seldom directly below it's corresponding cog
This has nothing to do with the pulley wheels. You just need more tension on your rear derailleur cable. There's a barrel adjuster where the cable enters the rear derailleur. Turn it counter-clockwise in half-turn increments until the alignment is close, then make finer adjustments until shifting is optimized.
james-<< I cleaned and greased the pulley wheels on my 9-speed Chorus rear der (10-speed cassette) but when I backpedal, the chain still catches sometimes and the jockey pulley is seldom directly below it's corresponding cog in the cassette, << Does that just go with the territory of having a 10-speed cassette and a 9-speed derailer,
Not this, but perhaps the der hanger not straight of the cage bent?
Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali costruite eccezionalmente bene"
I don't think the cable tension is too loose, as another respondant suggested. Are unstraight der hangers or bent cages something I can correct myself (I don't have one of those tools) or is that an LBS fix?
