Shimano 105 FC-R7100 12 Speed Chainrings BX Apparel Chain holder

Chain holder

Ultra-fast electronic shifting

starting with your hands

Enhanced grip – additional laser-cut texture on lever blades and controls is sweat- and wear-resistant

Shimano 105 FC-R7100 12 Speed Chainrings BX Apparel Chain holderChainring for the Shimano 105 FC R7100 2x12 speed crankset. Also compatible with the Ultegra FC R8100 crank Features The chainrings with 110 mm bolt circle diameter ensure fast as well as smooth shifting. For reasons of weight optimization, the outer models also feature a Hollowglide construction, which can still come up with an extremely stiffness. Specifications Outer: aluminum (anodized), glass fiber reinforced plastic (GFRP) Inner: aluminum