SHIMANO ULTEGRA DI2 DISC BRAKE ASSEMBLED SET-FRONT-R8170 and SET-REAR-R8170Shimano ULTEGRA Di2 ST R8170+BR R8170 2 speed Disc Brake Front and Rear set THE SCIENCE OF SPEED: Shimano Ultegra Di2 2 speed STI Dual Control ST R8170 + BR R8170 Disc Brake Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance focused approach. Shimano's new 12 speed road groupset delivers unparalleled control and comfort anytime,

Defined Color: Black

The elegantl DEORE FD-M4100 10-speed front derailleur from Shimano is available as Direct-Mount (FD-M4100-D)

New designed crank arm for optimum power transfer Precise & easy front derailleur set with lighter and intuitive shifting operation SHIMANO SHADOW RD construction for stable shifting performance Optimally balanced hydraulic brake system for racing with improved heat dissipation of ICE TECHNOLOGIES FREEZA

Easily visible gear position indicator

The Giro Fixture is equipped with an efficient ventilation system that ensures proper air circulation

and comes with our standard 9/16th axle or with our EZ Superior system: perfect for folding bikes

The second-generation digital gauge features a rotating SmartHead® and works seamlessly with Presta and Schrader valves without changing parts

Average Weight: 379g

When paired with the new FD-R8000 front derailleur

Easy-to-adjust entry and release tension settings

52-36 and 53-39 teeth are weight-saving thanks to Hollowglide technology and the outer chainring made of aluminium/CFRP

mechanical