SHIMANO Ultegra DI2 R8150 2x12 36-52 Power Meter Groupset W/ Disc Brake

The Shimano Ultegra Di2 R8150 2x12-speed Groupset with 36-52 Power Meter Crank and Disc Brake - Leave Time Behind

The Ultegra Di2 R8150 Road groupset by Shimano consists of a 2x12-speed power meter crank with 36-52 tooth gradation, a flat-mount disc brake set and an electronic rear derailleur and front derailleur for semi-wireless shifting. Of course, a rechargeable battery, a Quick-Link chain and a cassette with 11-30 or 11-34 teeth are also included.

Shimano has designed the Ultegra R8150 for speed and performance, but at the same time also had the timeless nature and community experience on the road bike in mind when developing it. User-friendliness, efficiency and safety also played a major role in development. That's why the groupset works without cables at the crucial point, namely the interaction between STIs and rear derailleur. Cables are only used between the battery and the rear derailleur or front derailleur. The wireless protocol is extremely fast and reliable, which raises the shifting speed to a new level - with consistently high precision. A twelfth sprocket on the cassette in combination with a very clever gradation means that you have a wider gear selection at your disposal, and are optimally prepared for any terrain. In addition, Hyperglide+ technology familiar in MTB sport ensures smooth gliding of the chain even under loads. Conveniently, the Ultegra 12-speed cassettes are also compatible with older Shimano road freehubs. Last but not least, the disc brakes have been thoroughly revised and equipped with servo-wave technology. This way, the full braking power is not only available more quickly, but can also be modulated better. A simplified bleeding process and more free space for the brake pads are further advantages. The crank comes - for the first time with Ultegra - with integrated power measurement on both sides, which has an enormously high accuracy of only 1.5% deviation. The power meter functions with a built-in battery that is charged via the same cable as the derailleur battery.

FEATURES:

• performance measurement cranks (power meter)

• battery mounting internally in the seatpost (adapter required), running time approx. 1000 km

• CR1632 battery in STI for wireless shifting

• front derailleur with more compact design than previous model, connected to battery via cable

• rear derailleur with wireless chip, LED display, charging socket and function button, connected to battery via cable

• 10% more clearance for the brake pads

SPECIFICATIONS

Series                               : Ultegra Di2 R8150

Application                       : Road

Shifters & Derailleurs       : 2x, 12-speed (electronic, semi-wireless)

Brakes                              : disc, hydraulic (flat mount)

COMPONENTS

Crank                               : 170.0 mm, 172.5 mm, 175.0 mm (gradation 36-52)

Cassette                          : 11-30, 11-34

Front Derailleur              : braze-on

Rear Derailleur               : long cage