CAN BE USED FRONT OR REAR TRP Spyre MD-C610: High-quality mechanical disc brake caliper Dual-piston design for balanced braking force Consistent and powerful braking performance in various conditions Durable aluminum alloy construction for lightweight strength Sleek and compact design complements modern bike frames Compatible with a wide range of rotor sizes Tool-free pad adjustment and easy cable tension adjustment Suitable for road and off-road cycling applications Enhances safety and confidence with reliable braking performance Comes as on the image with nothing else