Features: Lightweight And Durable: Made from premium quality aluminum alloy, these bike brakes are both lightweight and durable, ensuring long-lasting performance for all your cycling needs. Rubber Brake Shoes: The included rubber brake shoes provide excellent grip and , ensuring a safe and secure braking experience every time you ride. Improved Braking Performance: The C shape design of these bike calipers provides improved braking performance over traditional brakes, giving you greater control and confidence while riding. Repair Parts Accessory: Whether you're a professional mechanic or just a casual cyclist, these bike brakes are the perfect repair parts accessory for your mountain bike or road bike, ensuring that you're always prepared for any situation on the road. Quality Assurance: Our product will definitely win your heart with its premium quality! If you have any inquiries, please contact us. Notice: Actual color may be slightly different from the image due to different display and light effect. Please allow 1-3cm deviation due to manual measurement. Specifications: Material: Aluminum AlloyandRubber Color: Black Front or Black Rear or Sliver Front or Sliver Rear Screw Arbor Length: 50mm or 1.9in(Front), 35mm or 1.3in(Rear) Center distance: 61-79mm Include: 1 x Brake Caliper Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.