SRAM Disc Brake Lever Internals/Service Kit Replacement Parts After years and years of use, the moving parts on your bike will start to wear out and will need to be replaced. Luckily, many of these components are easy to service. The SRAM Disc Brake Lever Internals/Service Kit is designed to work with the SRAM Code Stealth Levers for both Ultimate and Silver models. The kit includes a piston assembly, bladder, and spring. Features Compatible with: SRAM Code Stealth Ultimate/Silver Comes with piston assembly, bladder, and spring | Sram | Disc Brake Lever Internals/service Kit Disc Brake Lever Internals/service Kit - (Includes Piston Assembly, Bladder , Spring) - Code Ultimate/silver Stealth C1