Getting a puncture when you’re cycling is not fun and is something that happens to every cyclist. Sometimes, the cause of the puncture is very obvious. Your tyre will deflate very quickly if get a pinch or impact puncture. In this case, you’re unlikely to be able to repair the tube. If you get a slow puncture, you need to find the cause of the puncture. This may be a thorn or piece of glass. Remove it from the tyre using a tyre lever. If it’s sharp enough to cut through your tyre, it won’t have much trouble cutting your hand either. Inner tubes aren’t cheap, so if the weather isn’t too awful and you have a slow puncture, you can normally patch it.