Originally Posted by
Darth Lefty
if there really are any differences between 8-9-10 speed SIS, they're likely to be pretty subtle.
I ordered a 12-32 cassette but haven't decided on what RD I will use yet. I have an extra 8 speed MTB RD that I planned to try when the cassette comes in. I have 5700 on it now, thought about buying one of the RoadLink extensions and continue using the one I have now instead of buying a 5700-GS or one of the MTB 9 speed people are often using.