The Shimano 105 Di2 R7100 Groupset brings Shimano’s proven electronic shifting technology to a more accessible performance level, delivering precise 12-speed Di2 shifting, dependable braking performance, and outstanding durability for modern road bikes. Developed by Shimano, the 105 Di2 system incorporates many of the same technologies found in the flagship Shimano Dura-Ace Di2 R9200 Groupset and performance-focused Shimano Ultegra Di2 R8100 Groupset, making electronic shifting more accessible than ever.The semi-wireless Di2 architecture provides a clean cockpit with wireless communication between the shift levers and derailleurs, while a centralized battery ensures reliable wired connections between drivetrain components. The result is fast, consistent shifting performance with minimal maintenance and simple system setup.The 12-speed drivetrain offers a wide gear range and tighter cadence steps, allowing riders to maintain efficient pedaling across varied terrain, from steep climbs to high-speed flats. Shimano’s redesigned front derailleur and optimized chain design ensure smooth, dependable shifting even under load.What’s Included? Crankset - FC-R7100 105 CRANKSETShifter + Caliper Pair (Front and Rear) - BR-R7170 105 Di2 HYDRAULIC DISC BRAKE SET x2Front Derailleur - FD-R7150 105 Di2 FRONT DERAILLEURRear Derailleur - RD-R7150 105 Di2 REAR DERAILLEURCassette - CS-HG710-12 CASSETTE 12 SPEEDChain - CN-M7100 CHAIN, SLX, HG 12-SPEEDRotors - RT-CL800 DISC BRAKE ROTORBattery - BT-DN300 BATTERYCharger - EW-EC300 Charging CableWire Kit - EW-SD300 ELECTRIC WIRE x2Bottom Bracket NOT Included
