Shimano Dura-Ace 9000 53t 110mm 11-Speed Chainring for 39/53t Model Name-Seymour Oceanweave EXP 19+ Trunk Bag 1-1/8" - 1

1-1/8" - 1

S Lower IS52 Size Tapered 1-1/8 Top 1

color:#17211a

For 1/4" hex bits as per DIN ISO 1173-C 6

Shimano Dura-Ace 9000 53t 110mm 11-Speed Chainring for 39/53t Model Name-Seymour Oceanweave EXP 19+ Trunk Bag 1-1/8" - 1This Shimano chainring allows you to update your Dura Ace FC 9000 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 Ideal for road cycling Ring Position Type Outer Tooth