How to fix flat tires on electric assist bicycles: A comprehensive guide from self-repair to preventative measures

A flat tire on an electric assist bicycle is a sudden problem, but in many cases you can solve it yourself if you follow the proper procedures. This time, we have compiled practical information, from how to repair it safely to tips for daily maintenance.

1. Ensuring safety and initial response

  • Stable working environment : Use a stand or place the vehicle on a flat surface to prevent it from moving.
  • Check for damage :
    • Visually check to see if there are any nails or pieces of glass stuck in the outer wall.
    • Check for air leaks and tire dents. When you pour water on the tire, air bubbles will appear and you will be able to find the leak.

2. Self-repair procedure

Required Tools
  • Puncture repair kit (patch and glue), tire levers, air pump
  • Allen wrench for motorized wheels (if required)
Specific steps
  1. Removing the Wheel
    • For the rear wheel, carefully disconnect the motor cable and loosen the quick release and nut.
    • When using tools, it will be easier to reassemble if you take a photo of the positions of the connections.
  2. Tube replacement
    • Use a tire lever to remove the outer tube and take out the punctured tube.
    • After replacing the tube with a new one, reattach the external tubing while letting in a small amount of air to prevent pinch flat.
  3. Reassembly and operation check
    • Inflate the tire to the recommended pressure on the side of the tire (e.g. 35-50 PSI).
    • Reconnect the motor cable and test drive to check the braking and assist functions.

3. Cases when you should hire a professional

  • Wheels with complex structures : Specialized tools may be required for those with built-in motors.
  • Severe damage to the outer rim : If there are severe cracks or deterioration of the rubber, the entire tyre will need to be replaced.
  • Short on time or tools : Use roadside assistance or emergency bike shop services

4. Daily maintenance to prevent punctures

  • Check tire pressure regularly : Inflating your tires once a week will help prevent "strike-in punctures."
  • Check the condition of your tires :
    • Check the grooves for wear and side tears.
    • After driving, clean the vehicle to make sure there are no pieces of glass stuck in it.
  • Use puncture prevention items :
    • Sealant liquid is injected into the tube (automatically repairing tiny holes).
    • Introduction of puncture-resistant tyres and tube liners.

5. First aid in emergencies

  • Turn off the electric assist : Turn off the battery and push the bike like a normal bicycle.
  • Use a quick patch : Spray emergency tire sealant to temporarily hold air in the tire.

6. How to deal with problems other than flat tires

After repairing a puncture, it's also important to check the following:

  • Battery connection : Check for poor charging or power supply.
  • Brake grinding noise : The brake pads may become misaligned when changing tires.

summary

It is possible to repair a flat tire on an electric assist bicycle yourself as long as you know the tools and the procedure. However, since there are many precision parts around the motor and battery, if you are unsure, don't force yourself and consult a professional. Reduce the risk of a flat tire with regular maintenance and maintain a comfortable ride!