Shimano Ultegra R8170 Di2 Disc Brake Groupset -

*Back in stock early May 2024*

Contact us to pre-order

Genuine boxed Shimano components fully guaranteed

*Disc rotors included*

Shimano Ultegra Di2 R8170 12 Speed Disc Brake Groupset is highly customizable using Shimano's user-friendly E-TUBE App on your smartphone or PC. With E-TUBE, you can set up your drivetrain just the way you like it; adjust shift speed, alter the number of shifts per button actuation, and utilize synchro and semi-synchro functionality.

You can also use E-TUBE to connect your Shimano 12-speed wireless drivetrain with Shimano Connected Partners like Garmin and Wahoo. This connectivity allows you to take advantage of features like scrolling through GPS screens using buttons on your shifter rather than taking your hands off the bars.

Shimano Ultegra DI2 R8170 12 Speed Disc Brake Groupset features new braking systems, which are quieter, easier to maintain, and deliver superior control. Improvements start with the addition of Shimano’s proven SERVO WAVE technology. First developed for mountain bikes, SERVO WAVE provides a quick initial bite, then slows down lever force generation for better modulation.

The new brake callipers offer increased pad-to-rotor clearance when the brake is disengaged, lessening the likelihood of rotor rub even if a rotor is slightly out of true. New ULTEGRA Di2 features 11-30 and 11-34 cassettes paired with 50-34 or 52-36 chainrings to deliver a gear range to meet any situation. A single rear derailleur option has eliminated any need for long or short cage models, one derailleur will do it all.

Shimano Ultegra Di2 R8170 12 Speed Disc Brake Groupset includes

• Crankset: Shimano Ultegra FC-R8100
• Bottom bracket: BB-R60 Ultegra - 105 bottom bracket English cups or BB9241B Shimano Road press fit bottom bracket for 86.5mm
• Shifters: Shimano Ultegra ST-R8170 Hydraulic disc brakes with wireless Di2 shifting.
• Brake callipers: BR-R8170F and BR-R8170R (includes brake hoses)
• Front Derailleur: Shimano Ultegra Di2 FD-R8150
• Rear Derailleur:Shimano Ultegra Di2 RD-R8150
• Cassette: Shimano Ultegra Di2 CS-R8100 11-30 or 11-34
• Chain: Shimano CN-M8100 Ultegra 12 speed or CN-M9100 Dura Ace 12 speed or x12 KMC
• Various cable options
• Shimano BT-DN300 Di2 Internal Mount Battery
• Shimano EW-EC300 Battery Charging cable