Shimano Saint RD-M820 10 Speed Shadow Plus Rear Derailleur - 10 Speed YGroup_7247873343533 Renthal used a specific carbon

Renthal used a specific carbon layup to increase comfort

Keeps your bike mounted solidly on single and dual arm mounts

It's easy to use by screwing on the head to your valve away you go

Micro USB rechargeable

while the built-in stretch allows the shorts to move with you without binding

Shimano Saint RD-M820 10 Speed Shadow Plus Rear Derailleur - 10 Speed YGroup_7247873343533 Renthal used a specific carbonShimano Saint M820 Shadow+ 10 Speed Rear Mech New chain control and silencing technologies in the new RD M820 are a game changer for gravity riding. In addition to the proven Shadow Plus RD design, a Saint specific, high durometer urethane bump stopper (between the RD and the dropout) was added to reduce impact noise. Now 10 speed, the new RD M820 features a durable super wide link that serves as the backbone of the DH parallelogram. Ready for track