Shimano Dura-Ace R9100 Chainring - 52 Tooth 11-Speed 110mm BCD For 52-36T Combination MFPN=1-BL-CLBRS-BOX-04S The s2032 braking compound is

The s2032 braking compound is a state-of-the-art material

Compatible with 46/33t 48/35t or 50/37t chainring combinations

Use to remove the compression valve seat assembly

Valve core removal tool

Shimano Dura-Ace R9100 Chainring - 52 Tooth 11-Speed 110mm BCD For 52-36T Combination MFPN=1-BL-CLBRS-BOX-04S The s2032 braking compound isThis 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 52 Drivetrain