Suppose I got hold of some shimano 10 speed flat bar shifters (SL-R770) intended for hybrid/commute types. These run on pre 2010 rear mechs (including 9 speed I believe) but, would they work on a new 10 speed cassette? is the spacing between the older roady cassettes the same as new MTB 10 speed?
Likewise, would I be able to run a SRAM 10 speed cassette with these shifters and a 9 speed mech?
cheers

