Originally Posted by
elizilla
Can a shifter for 10 or 11 speed rear, also work with my 9 speeds?
10sp mtb flat bar shifter do not work with 9sp rear derailleur
10sp road flat bar shifter do work with 9sp rear derailleur
(exception: 10sp Tiagra SL-4700 do not work with 9sp RD)
10s road shifters compatible with 9sp mtb rd:
Shimano Ultegra SL-R780 (with instant release, with multi release)
Shimano Ultegra SL-R770, Tiagra SL-4600, SL-R460 (with instant release, no multi release)
Originally Posted by
fietsbob
Stated his plan was putting an electric motor wheel in ..
may be thread is the same? or at least axle diameter is the same? they may be compatible