- Designed for compatibility with most 110/130BCD cranks, this bicycle chainring is a must-have for cyclists. Before purchasing, verify your crank specifications and desired number of teeth. - Constructed from durable aluminum alloy, our narrow-wide chainring features a unique shape that prevents the chain from falling, ensuring a secure and robust performance. - Available sizes: 110/130BCD with options of 36T, 38T, 40T, 42T, 44T, 46T, 48T, 50T, 52T, 54T, 56T, 58T, and 60T. Choose the size that best suits your cycling needs. - The safe and efficient design incorporates built-in machining for enhanced strength. The tooth shape, featuring both extended support and a unique profile, facilitates optimal chain performance during time trials and competitive cycling. - Ideal for various cycling applications, including road biking, mountain biking, and time trials, this chainring improves power transfer and reduces chain drop, enhancing your overall riding experience. - Upgrade your bike with this reliable and high-performance chainring, designed to meet the demands of serious cyclists seeking efficiency and durability.