|reverse spinning problem?||zeke|
Apr 21, 2002 9:01 PM
|at times i spin my crank backwards when my bike is on the stand, or when i am adjusting the cranks to get onto the saddle at a red light.
at times when i do this the chain comes off the cogset.
is this normal? a problem?
i use an ultegra gruppo.
|Not anything to worry about||retro|
Apr 21, 2002 10:48 PM
|It happens because the derailleur isn't lined up perfectly with the cog the chain is on. If it shifts all right when you're riding, I wouldn't worry about it. Are you moving the shifter after the bike comes to a stop, or when you're coasting up to the light? If so, it may not be completing the shift--the cranks have to be turning for the chain to move over.|
|Not anything to worry about||zeke|
Apr 22, 2002 4:02 AM
|thanks for the response. it does shift perfectly while i am riding.
i dont shift after i stop, but i may shift while i am coasting though try not to.
|re: reverse spinning problem?||ALBikeGuy|
Apr 22, 2002 4:17 AM
|As stated, might not be anything to worry about. But check the chain and cassette for wear. How old is the drive train?|
|re: reverse spinning problem?||zeke|
Apr 22, 2002 4:21 AM
|actually its new (about 250 miles), thats why i was a bit concerned. its done it since i've bought it (over the winter).|
|Cogset or chain rings???||Dave Hickey|
Apr 22, 2002 6:36 AM
|Chain coming off the cogset??? How can a chain come off the cogset. Is it shifting from one cog to another? Do you mean chain rings? Is your front derailleur adjusted properly? I had the same problem and it turned out to be my front derailluer was not parallel with the chain rings. When I pedalled backwards the derailleur would force the chain off the rings.|
|Cogset or chain rings???||zeke|
Apr 22, 2002 8:05 PM
|i see i wasnt clear in my original message. the chain does not come off the entire cogset, but rather, as you mention, shifts from one cog to another as i pedal backwards.
i will check the front derailleur.
thanks for the info.