Shimano Ultegra Di2 RD-R8150 Rear Derailleur (Black) (12 Speed) (Electronic)

Shimano Ultegra Di2 RD-R8150 Rear Derailleur Description: The Shimano Ultegra Di2 RD-R8150 Rear Derailleur takes performance to the next level with smooth and precise electronic shifting. Compared to previous Di2 derailleurs, shifts are 58% faster and more precise. Only offered in a single cage length which is compatible with a wider range cassette, from 28 to 34 tooth cogs max. With an integrated charging port and LED status indicator light, keeping your shifting powered up and connected has never been simpler. Features: Faster rear shifting, 58% faster than RD-R9150 Compact design includes an integrated wireless unit, charge port, and switch LED status indicator: Battery indicator, Pairing, Adjust mode etc. Wider range capacity: max. sprocket: 34T Di2 charging cable sold separately Specifications: Speed: 12 Speed Shifter Compatibility: Shimano Di2 Shift Mechanism: Electronic (Wireless/Wired) Max. Tooth: 34T Min. Tooth: 11T Chain Wrap Capacity: 39T Cage Material: Carbon/Aluminum Chain Retention: Shadow Color: Black Weight: 262g Check out our full selection of Shimano Ultegra 12 Speed Di2 Parts.