Originally Posted by
dohc97
As per my conversations with other members and my desire to switch out wheels i have decided to go ahead and start piecing together my conversion to centaur 10 speed. yesterday i bought a front derailleur and now its time to start looking for the rest of the parts. im very new to bikes in general, not afraid to wrench but my knowledge is very limited specially when it comes to campy. looking at rear derailleurs what is the difference between using the short cage, medium or long cage? also i was thinking i would be able to use my 105 calipers, bb and crankset, just change out rings? if im wrong please correct me. I did ask resident centurion expert robbietunes but i also dont want to continue to bug him with every little detail, he has been very helpful to this point.
Jose
Short is officially for double cranks and all cogs except 13-29 (and presumably the new 12-30) although some people have successfully run that combination (your derailleur hanger length affects what will work).
Medium is for double cranks with all cogs and triple cranks all except 13-29. The Racing-T derailleur was a medium.
Long works for everything.