Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK Product Type_Tubeless Valves Theres even an integrated silicon

Theres even an integrated silicon traction pad on the lower lever to make sure thumb traction is fully optimized

Color Black Lower Stack Height 4 Bearing Type Cartridge Crown Race 40 Weight 89 Defined Color Black Upper Stack Height 8 S

DebonAir+ Air Shaft Assembly for RockShox suspension forks

Lever and caliper fittings included

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK Product Type_Tubeless Valves Theres even an integrated siliconShimano Dura Ace FC R9200 12 Speed Chainring 50t Asymmetric 110 BCD Black NK. Shimano Dura Ace FC R9200 chainrings are constructed with high quality aluminum and are compatible with FC R9200 and FC 9200 P 2x 12 speed cranksets. Asymmetric 110 BCD Compatible with HG 12 speed chains TECH SPECS Color BlackRing Position Type OuterTooth Count 50Round or Oval RoundDrivetrain Speeds 12Chainring BCD 110 Shimano AsymmetricMaterial AluminumDefined Color Black