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Fixing Rubbing or Noisy Brakes on Your eBike or Electric Trike

If you find that the disc brakes on your electric bike or trike are making excessive noise or rubbing to the extent that they hinder the wheel's rotation (stopping it within one or two rotations after you cease pedaling), they may require adjustment. It's advisable to wait until after the initial wear-in period, which is typically between 50 to 100 miles, for your first brake adjustment. However, if the rubbing significantly impacts your ride, it shouldn't be delayed.

How to Fix Rubbing or Noisy Brakes on Your Front Wheel

Experiencing rubbing or noisy brakes can be both annoying and unsafe. Here are the steps you can follow to troubleshoot and fix the issue on the front wheel of your bike or electric trike:

Step 1: Inspect the Brake Pads

  • Check Alignment: Ensure that the brake pads are evenly aligned and parallel to the rim. Misaligned pads can touch the rim and cause noise.
  • Look for Wear: Replace the brake pads if they are excessively worn down.

Step 2: Adjust the Brake Calipers

  • Loosen the Bolts: Loosen the bolts that attach the calipers to the fork just enough so that they can move but are not completely loose.
  • Reposition: Align the calipers so that they are centered over the wheel. Make sure the pads are equidistant from the rim on both sides.

  • Tighten the Bolts: Once properly aligned, tighten the bolts to secure the calipers in place.

Step 3: Check the Wheel Alignment

  • Spin the Wheel: Spin the front wheel to check for wobbling, which could indicate that the wheel is not properly seated in the fork.
  • Adjust if Necessary: If the wheel is wobbling, release the quick-release lever or unscrew the axle nuts, reposition the wheel, then tighten back up.

Step 4: Test Brake Lever Tension

  • Squeeze the Lever: Check the tension by squeezing the brake lever. There should be a small amount of play before the pads touch the rim.
  • Adjust the Cable: If the tension is too high or too low, adjust the brake cable by tightening or loosening the bolt on the brake lever mechanism.

Step 5: Clean the Rim and Brake Pads

  • Use Alcohol Wipes: Clean both the rim and the brake pads with rubbing alcohol to remove any dirt or grease that might be causing noise.

Step 6: Fine-Tune the Brake Pad Angle

  • Adjust Toe-In: To prevent squeaking, set a slight toe-in for the brake pads. This means the front end of the pad should touch the rim before the rear end does when the brake is applied.
  • Use a Business Card: Place a folded business card at the back end of the brake pad while tightening to achieve this toe-in effect.

Step 7: Perform a Test Ride

  • Check for Noise: After making all adjustments, take a test ride to check if the noise or rubbing persists.
  • Repeat Adjustments if Necessary: If the problem continues, repeat the relevant steps until the issue is resolved.

By following these detailed steps, you should be able to fix any issues with rubbing or noisy brakes on your front wheel. If you're unsure about any of the steps, consider seeking help from a professional mechanic at your local bike shop.

Should you have any queries or need assistance, please feel free to contact our support team at support@perraroelectricbike.com or call us at (949) 414-8003.

1 comment

Missing part and broken wire and noisy wheel and rear brake barely engages? Please have tech call me at 5096832184

Ron Bernhardt ,

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