How to tell if your mountain bike's chain is worn out

One of the most important pieces of a mountain bike, or any bike for that matter, is the bicycle chain. Without the chain, you can't move your bike and that's a problem.

In this tutorial, you'll find out what tools you'll need to check the strength of your bike chain and whether or not it needs to be replaced. Not checking your bike's chain may result in injury while it's in use. Check out the tutorial and good luck!