Shimano's Ultegra 11-speed asymmetric chainrings provide clean chain engagement for reliable riding. The 110 BCD bolt pattern is compatible only with cranks with a matching 110 BCD, 4-bolt pattern.

Ultegra is ˝pro-proven˝ as it is a direct trickle-down from the Dura-Ace groupset.

Product details:

Redesigned tooth profile for improved shifting and chain retention
Hollowglide technology for light weight and stiffness