Shimano 105 FC-R7100 12-Speed Chainset 165mm 50-34T

The 105 chainset, 12-speed-ready.

The FC-R7100 brings Shimano's 105 groupset into the 12-speed era. Hollowtech II crank construction keeps weight sensible, and the 50-34T compact chainring set-up gives flexible gearing for UK club rides, sportives and everyday road cycling.

Why We Chose This for Our Customers:

• 12-speed compatible with full 105 R7100 series and cross-compatible with Ultegra R8100
• Hollowtech II crankset for stiffness and low weight
• 50-34T compact chainrings, versatile for everyday riding
• 165mm crank arms (check size selection for other lengths)
• Dynamic Chain Engagement+ tooth profile for positive shifting

Fitment: Requires Hollowtech II bottom bracket (BB86 or BSA). 12-speed front derailleur required for proper shifting.

Ideal for: Riders upgrading to 12-speed 105, or building a new road bike around a sensible-weight crankset.