Knowing how to put a chain back on a bike is an essential skill for any cyclist. A chain can come off for a variety of reasons, such as if it is too loose, if the derailleur is not properly aligned, or if the chain is damaged. If you are not able to put the chain back on yourself, you will need to take your bike to a bike shop for repairs.
There are a few different ways to put a chain back on a bike. The most common method is to use the chain tool. A chain tool is a small tool that is used to remove and install chains. If you do not have a chain tool, you can also use a pair of pliers. However, it is important to be careful when using pliers, as you can damage the chain if you are not careful.