Replacing brake pads on hydraulic brakes for an electric bike is a task that requires some mechanical skill and attention to detail. Here’s a general guide on how to do it:

  1. Gather Necessary Tools: You’ll typically need a set of Allen wrenches, a brake pad spacer tool (some brakes require this to reset the pistons), a flathead screwdriver, and possibly some brake fluid (if your brakes require bleeding).
  2. Safety First: Ensure your bike is stable and won’t tip over during the process. If needed, place it on a bike stand or secure it in another stable manner.
  3. Remove the Wheel: Depending on the design of your bike, you may need to remove the wheel to access the brake caliper. Typically, this involves releasing the quick-release lever or loosening the axle nuts.
  4. Remove the Old Brake Pads: Loosen the retaining bolt or pin that holds the brake pads in place. This is usually done with an Allen wrench. Once loosened, slide out the old brake pads. Pay attention to how they are oriented and how any retaining hardware is arranged; you’ll need to replicate this when installing the new pads.
  5. Reset the Pistons (if necessary): Some hydraulic brakes have pistons that need to be pushed back into the caliper to make room for the new, thicker brake pads. Use a brake pad spacer tool or a flathead screwdriver to carefully push the pistons back into the caliper. Be cautious not to damage the pistons or the brake fluid seals.
  6. Install the New Brake Pads: Slide the new brake pads into place, ensuring they are oriented correctly. Tighten the retaining bolt or pin to secure them in place. Double-check that the pads are aligned properly with the rotor and that there is no interference.
  7. Reinstall the Wheel: If you removed the wheel, put it back on the bike and secure it properly.
  8. Test the Brakes: Before riding, pump the brake lever a few times to ensure that the pistons reset correctly and that the pads make proper contact with the rotor. If necessary, adjust the position of the caliper or the brake lever reach to ensure optimal braking performance.
  9. Bed-in the Brakes (if necessary): Some brake pad manufacturers recommend bedding in the new pads to optimize their performance. This typically involves a series of controlled stops from moderate speeds to generate heat and transfer a layer of friction material onto the rotor.
  10. Check for Leaks and Functionality: After bedding in the brakes, inspect the brake caliper and connections for any signs of leakage. Test the brakes again to ensure they are functioning correctly.

If you’re unsure about any step or don’t feel comfortable performing the brake pad replacement yourself, contact a Fatdaddy store to do this for you. Incorrectly installed brake pads can compromise your safety while riding. We’ve also made a handy video where we show how to replace the brake pads below

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