When a boy gives up his rusty, dirty bike to the junk heap, the bike is recovered over and over again by people who need and use it until it finally ends up where it belongs.
When his adventurous father disappears during a hot-air balloon flight, ten-year-old Darius is torn away from his beloved housekeeper and sent to live with an obnoxious aunt until a strange bicycle repairman with a secret changes his life.
Gus doesn't want to give up the training wheels on his bike, even for a new five-speed bicycle, until Grandpa helps him learn how to get along without them.
Disappointed that she didn't get a bicycle for her birthday, five-year-old Lotta, confident that she knows how to ride, decides to take matters into her own hands and borrow the neighbor's bicycle.
An illustrated guide to bicycles and motorcycles presented in the form of computer screen pictures, covering the history, types, parts, movement, and uses of both types of vehicles.