This is true for all aspects of cycling. Know how to plug a tubeless tire, change a flat, and lube a chain. If you don't know how to change a flat, ask a friend, a local bike shop, or another cyclist to show you. It’s also important to learn how to remove and install the front and rear wheels on your bike. Some bikes require a tool, so make sure you have that tool with you or on your bike for every ride. Also, if you use a GPS unit, learn how it works and how to load maps. All these things take practice, so spend the time in training to feel comfortable and confident with each aspect.