With the caliper bolts loosened, slide the tool's 4mm blade between the rotor and each pad on both sides, then gently squeeze the brake lever and tighten the caliper bolts while the tool holds even spacing on each side, ensuring the caliper is centred before you remove the tool.

It's an inexpensive, simple tool that any home mechanic can use to fix disc brake rub, which is one of the most common and frustrating disc brake issues, so it's well worth having at home rather than making a shop visit for something this quick to fix.

It's made from precision-machined steel in a compact form factor, giving consistent 4mm spacing on both sides of the rotor for accurate alignment.

It works with standard flat-mount and post-mount disc brake calipers where you can access both sides of the rotor with a thin blade; very tightly spaced or unusually shaped calipers should be checked for clearance before use.

Rotor rub often returns after wheel removal and reinstallation, pad wear, or caliper bolts loosening slightly over time, so keeping this small tool on hand lets you re-centre the caliper in a couple of minutes whenever it happens again.

Yes, this is a genuine LEBYCLE tool sold through DoGoodCo, and our support team will help with any issue on arrival.