Shimano Ultegra R8100 12v 34T chainring

Shimano Ultegra FC-R8100 Chainring

Chainring for Shimano Ultegra FC-R8100 and FC-R8100-P 2x12-speed cranksets.

110mm bolt circle chainrings ensure quick and smooth shifting. For weight optimization reasons, the outboard models also have a hollow Hollowglide construction, which nevertheless offers extreme stiffness.

Material:
outer: aluminum (anodized), carbon fiber reinforced plastic (CFRP)
inside: aluminum (anodized)