This complete Shimano Ultegra R8170 Di2 disc brake build kit is the perfect foundation for anyone looking to finish a high-end road bike frameset. Pulled from a brand-new complete bike, this kit includes everything you need for a top-tier electronic drivetrain and braking setup—with premium Bontrager Aeolus carbon wheels, tires, and cockpit components to match.
Please note: This is a take-off kit from a new bike. Components may show light signs of installation (such as mounting marks or minor scuffs), but all parts are in excellent condition and have never been ridden.
- Includes only the items shown in the photos. No additional accessories or parts are included.
Kit Includes:
-
Drivetrain & Brakes:
-
Shimano Ultegra R8170 Di2 hydraulic disc brake shifters
-
Shimano BR-R8170 Flat Mount Calipers (Front & Rear)
-
Shimano Ultegra RD-R8150 12-Speed Rear Derailleur
-
Shimano Ultegra FD-R8150 Braze-On Front Derailleur
-
Shimano FC-R8100 Crankset, 52/36T, 172.5mm
-
Shimano CN-M8100 12-Speed Chain
-
Shimano Ultegra 11-30T Cassette
-
Shimano RT-CL800 160mm Centerlock Rotors (Front & Rear)
-
Di2 Battery, Charger, and Wires (600mm and 650mm)
-
Cockpit & Saddle:
-
Bontrager RSL Carbon Handlebar, 42cm drop width / 39cm control width
-
Bontrager RCS Pro Blendr Stem, 100mm, -7°
-
Bontrager Aeolus Comp Saddle, 145mm width, Steel Rails
-
Wheelset & Tires:
Why This Kit?
If you’ve got a road bike frameset and are looking to build it up with no guesswork, this premium-level parts kit gives you modern 12-speed electronic shifting, powerful disc brakes, and a full carbon wheel upgrade—all in one package. Whether you're racing, training, or upgrading your ride, this is the all-in-one solution to get rolling fast.
