A woman looks into a camera and smiles while talking before the scene cuts away to a pair of hands working on a bike chain.
A woman looks into a camera and smiles while talking before the scene cuts away to a pair of hands working on a bike chain. a pair of hands
work on a bike chain with tools and bolts. tighten the chain, and the shiny metal resumes its work. opens the chain and takes out a soldering iron that catches and makes an iron on the bike chain. start a bike chain chain, pumping it up and down and then down.