Rust is a common problem for bike chains, especially if they are not properly maintained. Rust can cause the chain to become stiff and difficult to move, and it can also lead to premature wear and tear. Removing rust from a bike chain is important to keep your bike running smoothly and to extend the life of the chain.
There are a few different ways to remove rust from a bike chain. One method is to use a commercial rust remover. These products are typically applied to the chain and allowed to sit for a period of time before being wiped away. Another method is to use a homemade rust remover. There are a number of different recipes for homemade rust removers, but one common ingredient is vinegar. Vinegar is a mild acid that can help to dissolve rust.