The true spirit of the sport Shimanos 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 components lead in all-day riding comfort with smooth power transfer and shifting.
Redesigned tooth profile for improved shifting and chain retention
Hollowglide technology for light weight and stiffness
