Originally Posted by
del690
Like it wasn't complicated enough I got another question on this subject. Last year I put a new SLX long cage MTB rear mech on my winter beater. It has that goat link thingy build right into it. The winter beater is a 9 speed but would that mech work on the 10 speed cassette?
If the SLX rear derailleur is 9-speed (SIS), then it will index a 10-speed cassette perfectly when shifted with a 10-speed Road (SIS) shifter. Nashbar has the 10-speed bar-ends for $50, btw.
If the SLX rear derailleur is 10-speed (Dyna-Sys), then it will index a 10-speed cassette perfectly when shifted with a 10-speed MTB (Dyna-Sys) shifter.
The extra "goatlink" hanger may make the indexing a little bit off on one end or the other of the cassette, according to some reviews. I haven't tried one myself.