SRAM DB5 Caliper Piston Kit

You should consider replacing your pistons if you notice uneven pad wear, a sticky lever feel that doesn't resolve with a bleed, or if the pistons are visibly corroded or leaking fluid. These symptoms often indicate that the seals or the piston surfaces themselves have degraded.

This kit is specifically designed for the SRAM DB5 caliper. While some SRAM components share parts, brake pistons are highly specific to the caliper bore size and seal design, so we recommend using this kit only for the DB5 to ensure a proper, safe fit.

No, this specific kit includes the two 21mm pistons only. You will need to source the corresponding caliper seal kit separately if your existing seals are damaged or worn.

Yes, but you will need a hydraulic brake bleed kit and the appropriate fluid for your system, as you will need to bleed the brakes after installing the new pistons. It is a precise task, so ensure you have a clean workspace to prevent any debris from entering the caliper.

If your current pistons are sticky or uneven, replacing them will certainly restore the smooth, consistent action the brake was designed for. However, modulation is primarily a function of the lever design and system health, so this kit is best viewed as a maintenance fix rather than an upgrade.