9 speed campagnolo centaur groupset with 8 speed shimano cassette
hey there i have a 2001 9 speed campagnolo centaur complete groupset i was hoping to install but i only have a shimano wheelset and 8 speed cassette...i can get a 9 speed cassette but will this set up even work? and if it dose can i just use the 8 speed cassette i have already? thanks!
You can do this up to a point, by using Jtek ShiftMate http://jtekengineering.com/shiftmate.htm, but looking briefly through their combinations, using 9 Speed Campag Shifters and RD with an 8 speed Shimano cassette looks to be one of a few combinations they don't support.
From what you have said you have 3 options
1, if you stick with the 8 speed Shimano cassette you could either get a ShiftMate #2 and an 8 speed Shimano RD
2, You mentioned a 9 speed Shimano cassette, if you get this, use a ShiftMate #1
3, just get a Campagnolo rear wheel / cassette (this is the option I would use)
You would need to decide what is most cost effective option for yourself.