Bikes are bound to go through a bit of wear and tear with each ride. Before your child heads out, make sure to tighten the seat, handlebars, and wheels. It is also important to make sure the seat is no more than three inches from the front bar. This will give your child better control over the bike and help protect them in the case of a crash. Every two weeks, oil the chain and pump air into the tires to ensure your child has the safest ride.
Source: Flickr user slobikelanes