The pinnacle of Shimano road technology and innovation, the new 12-speed ULTEGRA R8100 group is a fast and acute drivetrain. The Science of Speed, Shimano’s design philosophy for its latest road groups, is comprised of five elements: a new Di2 platform, a refined interface, the addition of Hyperglide+, a category redefining brake system, and a collection of new carbon wheels that are tubeless disc and Shimano 11 and 12 speed compatible.

Groupset Includes:

• FC-R8100 Crankset (Crank lengths: 165mm, 170mm, 172.5mm, 175mm) (Chainrings 50-34 or 52-36)
• ST-R8170 L & R 8170 Di2 Brake/Shifter
• FD-R8150 Di2 Front Derailleur
• RD-R8150 Di2 Rear Derailleur
• BR-R8170 Disc Brake Calipers flat mount front and rear.
• CS-R8100 Cassette (11-30 or 11-34 gear range)
• CN-M8100 12 Speed Chain
• BT-DN300 Internal Battery
• EW-FC300 Battery Charger Cable
• 2 x E-Tube Wires (900mm and 1200mm)
• Optional Add-on: 2x RT-CL800 Centerlock Disc Rotors (Sizes available: 160mm or 140mm)
• Optional Add-on: Shimano Threaded BSA / English Bottom Bracket, SM-BBR60, ISMBBR60B, shell 68mm