Features: Bike narrow wide chainring made of aluminum alloy, designed with positive and negative teeth to prevent chain drop, providing strong performance. Safe and efficient design: precision-machined for durability and safety, suitable for long-term cycling. Optimized tooth profile enhances chain engagement for improved performance. Size/BCD: 110/130; Splines: 36T, 38T, 40T, 42T, 44T, 46T, 48T, 50T, 52T, 54T, 56T, 58T, 60T. Tooth thickness is precision-machined to work seamlessly with both inner and outer chain links, ensuring smooth operation, reduced friction, and lower noise. Compatible with most 110/130 BCD cranks. Please verify your crank BCD and required tooth count before purchasing. Specifications: Material: Aluminum Alloy Color: As shown in picture Package Weight: approx. 110g Size: approx. 30cm / 11.81in Package Includes: 1 x Bike Chainring Note: Please allow 1-2cm error due to manual measurement. Please confirm you are okay with this before ordering. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you!