John is really good with bikes, and he’s written a set of instructions for fixing a puncture – we hope you’ll find it useful!

Bike Fixer – How to Fix Punctures by John F

1. Loosen the wheel with a socket set and take the wheel off.
2. Take the inside tube out of the tyre.
3. Fill a bath with water and pump up the tube. Put it into the water and see where the bubble is coming from.
4. Cover it with your hand. Then put glue onto the tubing. Place a patch over the hole and hold it for 30 seconds so all the glue dries in.
5. Leave it for a few minutes before putting it back in the tyre.
6. Pump up the tube so it’s just a bit flat. Put the tyre back on the wheel.
7. Put the wheel on the bike and tighten it.
8. Pump it up and hope the patch doesn’t pop!