Shimano Ultegra FC-R8100 12 Speed Chainring cassons It possesses good extreme pressure

It possesses good extreme pressure and anti-wear properties with outstanding low friction characteristics

Efficiency = speed

2mm stainless steel tubing bent in the same graceful curves as our original model

Supports future capabilities of Di2 systems

Shimano Ultegra FC-R8100 12 Speed Chainring cassons It possesses good extreme pressureChainring for the Shimano Ultegra FC R8100 and FC R8100 P 2x12 speed cranksets. The 110 mm bolt circle diameter ensures fast, smooth shifting, and for weight optimization, the outer ring also features a Hollowglide construction that still delivers extreme stiffness. Specifications Outer: aluminum (anodised), carbon fiber reinforced plastic (CFRP) Inner: aluminum (anodised) Mfr Claimed Weight TBC Refresh your Ultegra front shifting with this chainring,