Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK MFPN=EFDM3120E4 The outer shell is constructed

The outer shell is constructed from PC to give exceptional durability

0 x 12mm Silver Box of 100

Features new Super Shimano Linear Response (Super SLR) design that makes use of a friction-reducing mechanism in the caliper lever and cable that improve response and modulation

}Easton M8 Alloy Chainring Bolts and Nuts 4-Pack

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK MFPN=EFDM3120E4 The outer shell is constructedShimano 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