Features1Made of aluminium alloy, which is lightweight and durable to use. 2Ergonomic shape utilizes the stampede acting efficiently to create more stampede traction. 3Compatible with M6000/M7000/ M8000 / M9000 Series Cranks. 4The positive tooth corresponding chian tooth is wide, tooth corresponding negative chain is narrow. 5A replacement for bike repair.SpecificationOur product is made of aluminium alloy, which is lightweight and durable to use. Intensity is more secure, appply for long time cycling. A replacement for bike repair. Features:1. Made of aluminium alloy, which is lightweight and durable to use.2. Ergonomic shape utilizes the stampede acting efficiently to create more stampede traction.3. Compatible for M6000/M7000/ M8000 / M9000 Series Cranks.4. The positive tooth corresponding chian tooth is wide, tooth corresponding negative chain is narrow.5. A replacement for bike repair.Specification:Item Type: ChainringMaterial: Aluminium AlloyBCD: 96 mm / 3.8 inDiameter: 32T: 13.5 cm / 5.3 in, 34T: 14.5 cm / 5.7in,36T: 15 cm / 5.9 in,38T: 16 cm / 6.3 inWeight: Approx. 60 - 88 g / 2.1 - 3.1 ozPackage list:1 * Bicycle ChainringNote:Compatible for M6000 20speed tooth tray,not compatible for M6000 30speed tooth tray.Package List