Mountain Bike Chain Pin. The mountain bike chain is the powerhouse of the bike that allows it to move forward. To the untrained eye, all bike chains might look the same, but not all are created equal when it comes to trail and competitive riding.
To replace a bike chain that is broken or that has fallen off completely, you will need to have a new chain that fits your bike and a chain tool to remove the old chain and secure the new chain. Rivet the chain together using the link, pin or rivet which the brand of chain requires. Pick up the chain tool again and unscrew the handle a.
You will also need a replacement pin to connect the new chain, but this should come with the new bike chain.
To replace a bike chain that is broken or that has fallen off completely, you will need to have a new chain that fits your bike and a chain tool to remove the old chain and secure the new chain.
Numbers on the tool will indicate how worn your chain is and whether it's time to replace your chain. Before lubricating, you also need to clean it as thoroughly as possible , to remove. The type of chain you need will depend on the type of bike you are riding.