Shimano Ultegra R8000 39t 110mm 11-Speed Chainring for 39/53t MFPN=8154BL Instinct 3 is the rugged

Instinct 3 is the rugged 45 mm GPS smartwatch with bolted construction

It was developed for use with tires for mountain

Maintains quiet and smooth performance of the Hyperglide+ drivetrain with exceptional chain retention

Model Look Out Color Black/Yellow Size One Size Fits Most

Bolt-on 20x110mm non-Boost thru-axle

Shimano Ultegra R8000 39t 110mm 11-Speed Chainring for 39/53t MFPN=8154BL Instinct 3 is the ruggedThis 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