Don Gillies said: I agree about the Stronglight 57, 63, 93, and 105 problems. I have a triple and the chain will jam between ANY TWO of the three rings. Every time I shift, I have to pedal artificially slowly so as not to load the chain, as it skirts between the rings. If I shift under pressure, the chain jams so deeply it's almost impossible to get it out of the crankset. I think the bike is running an SRAM PC-58 chain. I've been reluctant to molest (lightly sand) the crank arm tabs. It would be good to know who makes the widest modern 3/32 chain??"
Don, have you tried reducing the wrap-up tension of the rear derailleur's pulley cage spring (or whatever it's called)?
Peter
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Peter Brueggeman
La Jolla California USA
4peebee(at)peterbrueggeman.com