can i use 10 speed?

petevespa

Have 9 speed. 105 rear mech , "9 speed front mech" flat bar shiffters, can i just fit 10 speed cassette , are 9/10 speed chains same width? running shimano chain at present..

tofu21

9 and 10 speed run different chain widths.

You may be able to get away with using 9 speed mechs but I'm not sure.

redddraggon

You need 10speed shifters, 10speed chain, and 10 speed cassette.