Protective Function: The bicycle crankset chain wheel cover is designed to prevent the chain from jumping out, protecting your bike's crankset and enhancing its appearance. Protect Your Pants: This bike chain wheel protective cover helps prevent your trouser leg from getting caught in the chain wheel gears during cycling, avoiding tears and oil stains. Premium Material: The crankset guard is made of plastic, offering a stable and lightweight solution for your cycling needs. Suitable For: This repair part fits 40-42 tooth chain wheels with a hole spacing of 6.5 cm (2.56 inches), compatible with 5-hole crankset groups. High Performance: With a functional design and sturdy construction, this bicycle chain wheel cover provides long-term protection for your bike's components and enhances safety during rides. Specifications: Material: Plastic Size: 6.5 cm (2.56 inches) Package Includes: 1 x Bike Chainring Guard Note: 1. Please allow slight measurement deviation due to manual measurement. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item.