Xray release this XB9 factory pre-assembled brake pad set for consistent and precise braking. High-precision, ultra-efficient steel brake pads are CNC-machined and precision ground on both sides for an ultra-smooth surface finish to guarantee maximum braking efficiency. Brake pad backing plates are heat-treated for maximum lifespan. Special high-grip brake pad material is specially bonded to backing plates for high resistance to generated heat build-up. Sold in a set of 4.