R10 Medium Cage Silver Rear Derailleur

DETAIL

R10 Rear Derailleur for 2 x 9/10 Speed. Full Aluminum.

This is for a 34-tooth cassette, but as long as you're on a double and within capacity for the derailer, you may be able to go up to 36-tooth. For example, on a Bassi Classic Compact Double. Yes, we made that crank to fit these exact specs. It's a wonderful system.

SPECS

• Cassette Compatibility : 10/9 Speed
• Max Sprocket : 30-34T
• Min Sprocket: 11T
• Total Capacity: 39T
• Weight : 220g
• Compatibility : All Shimano indexed 9 and 10-speed; Tiagra 4600