Free Seized Pistons in Your Avid Code or SRAM Guide RE Brakes — Every Time Designed and registered in the UK, the r3pro Piston Release Tool takes the frustration out of seized pistons — precision-engineered to apply even, controlled pressure exactly where it's needed, with no improvised tools and no scratched pistons. Seized pistons cause uneven pad wear, reduced power, and hours of frustration. This tool fits cleanly into your caliper and frees pistons consistently, so your brake service stays on track. Compatible Calipers Avid Code SRAM Guide RE Important Notes For releasing seized pistons only — not for general piston retraction. Please refer to the SRAM service manual for guidance. Tool Bundle Option Select the Tool Bundle variant to add a matching r3pro Bleed Block Spacer Tool and Caliper Alignment Tool — everything you need for a full brake service in one order, at a saving versus buying separately.