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Shimano R8100 Ultegra Di2 12 Speed Disc Groupset

Shimano road technology and innovation, the all-new 12-speed R8100 Ultegra is Shimano fastest and most inspired drivetrains ever. Shimano engineers worked to refine each component and every function to provide the best on-bike experience.

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Shimano R8100 Ultegra Di2 12 Speed Disc Groupset

Shimano R8100 Ultegra Di2 12 Speed Disc Groupset not only feature the proven HYPERGLIDE technology that revolutionized mountain bike shifting, but the new, wireless cockpit takes cycling’s fastest electronic shifting system and makes it even faster. A new, proprietary wireless protocol increases shifting speeds without sacrificing even a tiny fraction of Shimano’s hallmark precise and reliable shifting performance. Battery life is also best-in-class, with a centralized battery that delivers approximately 1,000 kilometres of worry-free riding on a single charge.

Shimano’s new shifting systems use wireless technology where it makes sense for both day-to-day life and ultimate performance. Freeing the shift levers from the rear of the bike cleans up the cockpit and simplifies the build process. Meanwhile, connecting the derailleurs to an internal main battery ensures absolute reliability by maintaining stable voltage while also improving Shimano’s already lightning-fast shift speed that has made Di2 a staple of the WorldTour pro peloton.


1 x Shimano FC-R8100 Ultegra Crankset 170mm 52/36
1 x Shimano CS-R8100 Ultegra 12 Speed Cassette 11-34
1 x Shimano CN-M8100 XT 12 Speed Chain 116L

1 x Shimano ST-R8170 Ultegra Di2 Left Lever w/ BR-R8170 Rear Disc Caliper
1 x Shimano ST-R8170 Ultegra Di2 Right Lever w/ BR-R8170 Front Disc Caliper
1 x Shimano FD-R8150 Ultegra Di2 Braze On Front Derailleur
1 x Shimano RD-R8150 Ultegra Di2 12-Speed Rear Derailleur

1 x Shimano EW-EC300 1700mm Charge Cable
1 x Shimano BT-DN300 Di2 Internal Battery

1 x Shimano EW-SD300 Di2 Electric Wire 1200mm Built In Routing
1 x Shimano EW-SD300 Di2 Electric Wire 700mm Built In Routing

2 x Shimano Disc Brake Rotor 160mm RT-MT8000 XT Ice Tech Internal Serration