How to fix disc brake rub on your bike

A little disc brake rub is common, especially after transport or wheel removal, but it’s quick to fix. Here’s how to get your brakes running silently and smoothly again:

Step 1: Identify the rub

• Lift the rear of the bike and spin the wheel.

• Listen carefully to locate where the disc is rubbing on the brake pads.

• Move the wheel back and forth to confirm it’s rubbing at that point.

Step 2: Check the caliper alignment

• Use a torch or slip a piece of paper between the rotor and pads.

• If you can’t see light on one side, that’s where the pad is catching.

Step 3: Adjust the caliper

• Loosen both caliper bolts slightly — enough for the caliper to move but not hang loose.

• Gently reposition the caliper so the rotor sits evenly between both pads.

• Hold in place and re-tighten the bolts to the manufacturer’s torque spec.

Step 4: Re-check the wheel

• Spin the wheel again to check for rubbing.

• If it’s still catching, repeat the adjustment until the rotor runs cleanly between the pads.

And that’s it — no more annoying scraping sound, just smooth, reliable braking.