This Shimano chainring allows you to update your Ultegra FC-R8000 11-speed crankset with a chainring configuration to best fit your riding style.

Integrates Shimano Hollowglide Technology: the high rigidity hollow structure cuts down on weight yet maintains strength to provide better power transfer and quicker more precise front shifting

Features a weight saving 4-bolt design with a BCD of 110 mm

Ring Position/Type	Inner
Tooth Count	39
Drivetrain Speeds	11
Chainring BCD	110 Shimano Asymmetric
Color	Black
Defined Color	Black
keyword search	Y1P439000
Combination	39/53T