sentence: We see a man talking in a bike ship. sentence:  the man points at a bike. sentence:  The man takes off the handlebars on a bike and adjusts them. sentence: 
The man puts the handlebars back on. sentence:  The man moves to the front of the bike to adjust the handlebars. sentence:  The man then finishes tightening the bolt on the handlebar. sentence:  The man steps back when finished.