Shimano 105 DI2 RD-R7150 12-Speed Rear Derailleur Size_27 3D Aluminum carrier​

3D Aluminum carrier​

6 52 700x32c * 3

3D-forged 6061

We've done it again

the handle stays fixed onto the axle

Shimano 105 DI2 RD-R7150 12-Speed Rear Derailleur Size_27 3D Aluminum carrier​SHIMANO 105 Di2 Rear Derailleur SHIMANO SHADOW RD 2x12 speed RD R7150 A new level of performance for SHIMANO 12 speed road rear derailleurs Wide 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