SRAM Red AXS Disc Brake Caliper Piston Service Kit D1

This specific service kit is designed for the D1 generation of SRAM Red AXS hydraulic disc brake calipers. Please verify your caliper generation before purchasing, as internal components can vary between model years.

This is a genuine SRAM service kit containing the necessary replacement pistons and seals required to rebuild your Red AXS disc brake calipers. It is intended for maintenance when you experience piston sticking or seal degradation.

Yes, you will need standard shop tools for brake maintenance, including a bleed kit, appropriate hydraulic fluid, and a torque wrench. It is highly recommended to have a professional mechanic perform this service if you are not experienced with hydraulic brake systems.

Absolutely. Whenever you remove the pistons for service, you should always install new seals to ensure a proper, leak-free fit. This kit is designed to provide everything you need for a complete, reliable rebuild.

A mushy lever is often caused by air in the system, which is resolved by bleeding the brakes rather than replacing the pistons. If your brakes have been bled properly and still feel inconsistent or sticky, then a piston service may be the correct next step.