Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur bikecorp or stiffest

or stiffest

you'll have plenty of confidence in your brakes

Italian quality and craftsmanship are at the core of this iconic name in cycling componentry

Upper cup: 44mm InSet

Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur bikecorp or stiffestWide 36T compatible 12 speed Di2 rear derailleur. Receiving the wireless shifting signal from the shift lever, the SHIMANO 105 rear derailleur completes a shift in the blink of an eye with its high performance motor and optimized link structure. This is the hub of the Di2 system, with the charging port, indicator LEDs, adjustment switches and more integrated into a compact package. A low profile design reduces damage from contact and falls.