Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ teeth-36T The 25 mm wide aluminum

The 25 mm wide aluminum rim offers modern tires the support needed to ride low air pressure in order to minimize rolling resistance

Finger Style Short Finger Gender/Age Unisex Color Jet Black Padding Foam Size 2X-Large Season Warm Weather Insulation Type None Defined Color Black Fabric Weight Light Activity Cycling

The fully mechanical system is not only reliable and easy to maintain the UPSIDEDROP technology keeps the weight of just 416 g possible

Co-molded construction / Wide Angle Optics - 270° of visibility

These versatile shifters have CNC-machined mechanisms that result in crisp shiftings you will love

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ teeth-36T The 25 mm wide aluminumShimano Dura Ace FC R9200 12 Speed Chainring 40t Asymmetric 110 BCD Black NJ. 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 InnerTooth Count 40Round or Oval RoundDrivetrain Speeds 12Chainring BCD 110 Shimano AsymmetricMaterial AluminumDefined Color Black