Feature 1Made 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 perfect replacement for bike repair. Specification Our product is made of aluminium alloy, which is lightweight and durable to use. Intensity is more secure, appply for long time cycling. A perfect 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 perfect replacement for bike repair. Specification: Condition: 100% Brand New Item Type: Chainring Material: Aluminium Alloy Specifications: 32T, 36T, 38T(Optional) Color: Black, Red(Optional) Type: Black 32T, Black 36T, Black 38T, Red 32T, Red 36T, Red 38T(Optional) BCD: 96 mm / 3.8 in Diameter: 32T: 13.5 cm / 5.3 in, 34T: 14.5 cm / 5.7in,36T: 15 cm / 5.9 in,38T: 16 cm / 6.3 in Weight: Approx. 60 - 88 g / 2.1 - 3.1 oz Package list: 1 * Bicycle Chainring Note: Compatible for M6000 20speed tooth tray,not compatible for M6000 30speed tooth tray.