Sram Unisex - Adult Brake Caliper 2039100177 Service Kit, Black, One Size

SRAM Red AXS D1 Piston Kit - 21mm Brake Caliper ServiceRestore the pinnacle of braking performance to your top-tier road bike with the genuine SRAM Red AXS D1 Piston Kit. This essential service component is specifically designed for cyclists and mechanics who demand the highest standards of reliability and function from their SRAM Red eTap AXS D1 hydraulic braking system. When it comes to maintaining the sharp, responsive feel of your brakes, there is no substitute for original equipment spare parts.Over time and through rigorous use, the internal components of your brake calipers can experience wear, potentially leading to a decrease in performance, a spongy lever feel, or sticky pistons. This 21mm piston kit is the definitive solution to bring your calipers back to their factory-fresh condition. By replacing the core moving parts, you ensure smooth and consistent piston actuation, which is critical for achieving the precise modulation and powerful stopping force that the SRAM Red AXS