1. Shell made of high-quality metal construction, ensuring minimal deformation and highly responsive braking performance. 2. Tested for safety and durability with over 50,000 wear-resistant cycles, braking friction force exceeding 2200N, heat resistance above 120°C, and low-noise design for safe and eco-friendly operation. 3. Brake shoe block constructed from high-temperature friction material, tested through nearly 50,000 friction cycles, resistant to high-temperature fatigue, providing consistent and sensitive braking. 4. Features high-quality stoving varnish surface finish; front includes fixed positioning for easy installation and removal. 5. Equipped with adjustable mounting holes, compatible with lithium battery electric bikes. Condition: 100% New Item Type: Electric Bike Rear Brake Model: 100 Type Material: Metal Color: Silver Package Contents: 1 x Electric Bike Rear Wheel Brake Kit Note: Light reflection and display differences may cause slight variation in color between the image and actual item. Measurement allows an error of +/- 1-3 cm.