I've got an older 8 speed (shimano) road bike with down tube shifters, and I'm thinking about doing the shimanglo thing (9 speed cassette with 9 speed ergo levers and rear der.)
I'm thinking of adding a compact crank when the mid priced ones become more available, will the campy short cage deraileur handle the larger tooth difrential (with a 12-25 cassette)? Or do I need the medium or long cage?
jack-<< I'm thinking of adding a compact crank when the mid priced ones become more available, will the campy short cage deraileur handle the larger tooth difrential (with a 12-25 cassette)? >><BR><BR>
Yep, w/o problem.
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On 1 Jun 2004 06:56:07 -0700, [email hidden] (Jack Riley)
Quoted message said:
I'm thinking of adding a compact crank when the mid priced ones become more available, will the campy short cage deraileur handle the larger tooth difrential (with a 12-25 cassette)? Or do I need the medium or long cage?
The current Campy standard cage rear derailleurs handle 50/34 x 13/29. I've forgotten what year they made the cage on standard cage models slightly longer. I'd guess about 3 years ago. If you have a rear derailleur from prior to 3 years ago, using an 8sp derailleur pulley will permit using the 50/34 and 13/29. My wife's bike has a Record 8sp rear derailleur and it does 48/34 and 13/29, 10 sp w/o a problem. Before 10sp, she was suing a 13/30 cassette.
I use a Record 9sp rear derailleur and 50/34 x 13/29. It just makes it with the safe length chain.