Shimano Ultegra R8000 39t 110mm 11-Speed Chainring for 39/53t MFPN=8154BL Wheels: rubber

Wheels: rubber

Bolt-on 20x110mm non-Boost thru-axle

1/2" square drive

The power meter technology is integrated through what SRAM calls “DUB-PWR” – a unique design that elegantly houses Quarq’s reliable and accurate power measurement inside the DUB crank spindle itself

Shimano Ultegra R8000 39t 110mm 11-Speed Chainring for 39/53t MFPN=8154BL Wheels: rubberThis 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