Unior Disc Brake Piston Spreader - Red

This tool is primarily designed for hydraulic disc brake systems. It may not be compatible with mechanical disc brakes or other braking systems.

Typically, no. This tool only retracts the pistons. You should only need to bleed your brakes if there's a leak or air in the system, or if the retraction process reveals a problem.

Wipe it clean with a dry or slightly damp cloth after use. Avoid harsh solvents. Store it in a dry environment to prevent rust.

Yes, you can use the tip to push one piston back at a time, or if the design allows, you can sometimes apply pressure to both simultaneously if the tool spans both.

The 30° bend provides better access and leverage in tight spaces, such as around spokes or frame elements, making the retraction process easier and more comfortable.

Yes, the double-dipped ergonomic handle is designed for comfort and a secure grip, reducing hand strain during repetitive maintenance tasks.

It is made from laser-cut, heat-treated tool steel, ensuring strength, durability, and resistance to wear.

Ensure the brake lever is not pulled and that there are no obstructions. Clean the caliper and pistons of excessive dirt or grime. Try applying gentle, steady pressure. If pistons are very stiff, a small amount of brake fluid applied carefully around the piston seals might help, but proceed with caution.

Ensure the tool is inserted fully between the pads and against the pistons. Make sure the pistons are moving evenly. Check that the brake pads are fully removed before attempting to push pistons back.

Ensure the tool tip is clean and free of sharp burrs. Always insert the tool carefully and avoid excessive force that could gouge surfaces. The tool's design is intended to interface cleanly with pistons.