Bike shops can help determine if your bike is safe. By following traffic laws, cyclists are predictable to other drivers. Pass on the left. Wear a Helmet Head injuries cause the majority of bicycle motor-vehicle collision deaths. Helmets can help reduce the frequency and severity of head injuries.
Helmets can only do their job, however, if properly fitted and adjusted.
Always wear the helmet level on your head. The side buckles should be situated just below your earlobes. The chin strap should be adjusted to fit snugly when the chin buckle is closed. Try to push your helmet off from the front and then the sides. If you can, the helmet will not do it's job in a crash and needs to be readjusted.