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The SRAM Disc Brake Caliper Piston Kit is a genuine replacement solution designed to restore the power, consistency, and reliability of your hydraulic disc brakes. Featuring two 21 mm phenolic caliper pistons, this kit is engineered to handle the high heat and pressure generated during hard braking, helping to reduce fade and maintain smooth, predictable performance on long descents or in demanding conditions. Phenolic pistons are known for their excellent heat insulation properties, which help keep brake fluid temperatures more stable and contribute to consistent lever feel.
This kit is ideal for riders who want to refresh a worn or damaged caliper without replacing the entire brake system. Whether you are maintaining a mountain bike, gravel bike, or performance-oriented road bike equipped with compatible SRAM disc brakes, these pistons help ensure precise pad movement and even pad wear. Using original SRAM parts supports optimal sealing, alignment, and durability, making this piston kit a smart choice for home mechanics and professional workshops alike. Pair it with a proper bleed and fresh pads to bring your braking system back to like-new performance.
