S
Scott
Guest
What would be a cause for not shifting smoothly going uphill but Ok on flat level surface?
Parktool website list the following. Could this be a cause? My old cheapy Mongoose with grip
shifters is very smooth shifter but my new Gary Fisher with rapidfire shifters is very rough.
Modern indexing shift levers use dwell, which is a hesitation between movements in the lever. These
hesitations are timed to match the movements of the derailleur and the spacing in the rear
sprockets. The design of some derailleur and shift lever brands requires more of a push (or twist)
of the lever to complete the shift. The amount of extra push or twist is not consistent between
manufacturers and each rider must learn the particular attributes of his or her system.
Parktool website list the following. Could this be a cause? My old cheapy Mongoose with grip
shifters is very smooth shifter but my new Gary Fisher with rapidfire shifters is very rough.
Modern indexing shift levers use dwell, which is a hesitation between movements in the lever. These
hesitations are timed to match the movements of the derailleur and the spacing in the rear
sprockets. The design of some derailleur and shift lever brands requires more of a push (or twist)
of the lever to complete the shift. The amount of extra push or twist is not consistent between
manufacturers and each rider must learn the particular attributes of his or her system.