Shift the bicycle to the smallest gear to reduce chain tension.
Use a chain tool to push out the pin from the broken link.
Remove the broken link completely from the chain.
Align the new link with the chain ends.
Use the chain tool to insert the pin into the new link.
Ensure the pin is flush with the link plates.
Check the new link for smooth movement.
Reattach the chain to the gears.
Rotate the pedals to ensure the chain runs smoothly.
Apply lubricant evenly across the entire chain.
Wipe off excess lubricant with a rag.
Test ride the bicycle to ensure the repair is successful.
