Ultegra R8100 Chainring Tooth Count:36T (52-36) HollowPin construction for increased strength

HollowPin construction for increased strength and efficiency

THE WORLD’S BEST AEROBAR JUST GOT BETTER

Durable light action shifting performance for stress free riding

KICKR CORE 2 is the smarter way to start riding indoors

16mm hardened MAX-PERFORMANCE STEEL SHACKLE

Ultegra R8100 Chainring Tooth Count:36T (52-36) HollowPin construction for increased strengthShimano Ultegra FC R8100 chainrings are constructed with high quality aluminum and are compatible with FC R8100 and FC 8100 P 2x 12 speed cranksets. Aluminum with anodized finish provides durability and light weight 34t inner chainring is for use with 50t outer chainring Asymmetric 110 BCD Compatible with HG 12 speed chains