KazoltE-bike error codes, fixed

Fix guide · Brakes

How to Stop a Disc Brake Rubbing

Re-center the caliper in 5 minutes

Quick answer

Make sure the wheel is seated straight, then loosen the caliper bolts, squeeze the brake, and tighten the bolts again while holding it. That re-centers it.

A bike disc brake: the silver rotor and the brake caliper mounted on the fork
The caliper must sit centered over the rotor, or the pads rub as the wheel turns. Photo: Alextredz, CC BY-SA 4.0, via Wikimedia Commons (resized)

Try this first

Free, and each takes under 5 minutes.

  1. Reseat the wheel
  2. Look for a bent rotor

In plain English

A rubbing disc brake costs range and makes noise. Most often the wheel isn't seated perfectly straight or the caliper has shifted. A bent rotor rubs in one spot each turn, and sticky pistons rub all the time.

Watch how it's done

How to Align a Hydraulic Disc Brake on a Bike Park Tool · YouTube · loads when you tap play

Video by Park Tool. It may show a regular bike: on an e-bike, switch off and remove the battery first, and unplug the motor cable before taking off a hub-motor wheel.

Step-by-step checklist

Work from the top. Steps go from free and easy to shop jobs. Switch the bike off before touching any connector. Tick each step as you go. Your progress is saved on this device.

Parts you might need

As an Amazon Associate I earn from qualifying purchases. These links go straight to Amazon.

Only buy a part if the free steps didn't fix it. Always match the voltage and connector type to your bike.

  • Bike multi-tool or hex key set

    Fits nearly every bolt on a bike. Useful for almost every guide here.

    Link coming soon

  • Disc brake cleaner or isopropyl alcohol

    Removes oil and dirt from brake rotors without leaving residue.

    Link coming soon

Still not fixed?

Pages to try next:

When it's time for a shop: if you've worked through every step and the problem is still there, take the bike to an e-bike shop. Bring your notes on when it happens, plus the code.