How do I know which are the best bicycle tubes for my bike?

You ll need to know the diameter and width of your tire. Luckily, this size (diameter x width) is printed on the sidewall of the tire, so it s usually easy to find. However, if your tires are worn and you can t find it, you can measure it yourself, or you can find it in your bike manual.

What equipment do I need to replace a tube?

You ll need a tube, two tire levers and a pump.

If I get a puncture in my tube when I'm riding, should I patch it or replace it?

You can do both. Replace the tube while you're on your ride, then patch it later and use it as your spare.