The new crank arm design offers the optimal balance between lightness and efficiency. The hollow aluminum crankset is finished in a beautiful gloss black anodized finish for a luxurious look. The resin fins on the rear of the chainring are a unique SHIMANO 105 design that reduces weight while ensuring high-performance shifting.

Model: FC R7100
Material: Steel / Aluminum / CFRP
Designed for drives: 2x12
Works with 12-speed drivetrains
Disc Combination: 50x34
Crank arm length: 175 mm
Hollowtech II
Integrated steel axle
Outer Chainring: Aluminum / CFRP, Hollowglide (Hollow disc design) reduces weight while increasing strength 4-arm crank design
Inner shield: Aluminum
PCD 110mm
Chainline: 44.5mm
Dedicated bearings: SM-BBR60, SM-BB72-41B Press-fit
Q-factor: 148mm
Dedicated chain: Shimano 12-speed, e.g. CN-M8100, CN-M7100, CN-M6100