Shimano Dura-Ace R9100 55t 110mm Chainring for 55-42t 9/16'' Shimano: designed to be a

Shimano: designed to be a proper BB for installing Shimano Hollowtech II steel spindle cranks in either BB30 or PF30

} Power meter is fully integrated into the chainring for lighter weight and greater accuracy Power readings are accurate within +/-1

The Tech 3 Duo brake lever is combined with two X2 2-piston calipers that will suit any riding from XC to Enduro/All mountain

- Super durable proprietary insert bonding technology

65" Rate (Lbs) 480

Shimano Dura-Ace R9100 55t 110mm Chainring for 55-42t 9/16'' Shimano: designed to be aThis Shimano chainring allows you to update your Dura Ace FC R9100 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 Outer Tooth Count 55 Drivetrain