T6 heat-treated high-strength aluminum alloy material is light and strong, not easy to bend and deform. Unique inclination angle and mud discharge oblique mouth reduce weight.CNC high-speed engraving and hard oxidation treatment make the chainring is beautiful. A variety of color options to match different needs.The design of positive and negative teeth, one thick and one thin, reduces the gap between the chain and the chainring, and can be closer to the chain card, which greatly prevents the shaking of the chain caused by the speed change.Item Name: Bike ChainringMaterial: 7075-T6 Aviation Aluminium AlloyTeeth: 30T/32T/34T/36T (Optional)Offset: 6mmFeatures: Durable, Easy to Install, ReplacementThickness: Chainring 10mm/0.39", Positive Tooth 3.7mm/0.15", Negative Tooth 1.9mm/0.07" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bike Chainring