Precise compatibility for Bafang M625 and BBSHD mid drive motors ensures excellent fitment and smooth power transmission. High-strength aluminum alloy construction provides a good balance of strength and light weight, resisting deformation under high torque output. Special tooth profile designed for e-bike use improves chain retention and reduces the chance of chain drop during strong acceleration or off-road riding. Optimized tooth shape is suitable for single-chainring e-bike setups, providing smoother and quieter engagement with the chain. Ideal upgrade or replacement sprocket for high-power 1000W electric bikes, enhancing overall performance and handling. This aluminum alloy chainring is specially designed for Bafang M625 and BBSHD mid drive motors, ensuring excellent fitment and smooth power transmission. It is an ideal upgrade or replacement sprocket for high‑power 1000W electric bikes. The chainring is made from durable aluminum alloy, featuring a good balance of strength and light weight. It resists deformation under the high torque output of 1000W mid motors and helps reduce the overall weight of the drivetrain for better handling and acceleration. The specially engineered tooth profile improves chain retention and reduces the chance of chain drop during strong acceleration or off‑road riding. The optimized tooth shape is suitable for single‑chainring e‑bike setups and provides smoother, quieter engagement with the chain. Color: Blue Material: Aluminum Alloy Specification: 38T Package Contents: 1*motor disc Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.