Summary
Summary
The various problems identified in this report with chain assemblies, brakes, wheels, handlebars and grips, and pedals all pose significant safety hazards to young bicycle riders. The severity of the threat is important because loss of control of the bicycle can lead to collisions with other motor vehicles, as well as high speed collisions with the ground and other objects. Further research is needed to investigate the mechanisms underlying these apparent product failures and malfunctions. For example, the extent to which these problems apply to new bicycles as opposed to older bicycles, and the relative contribution of inadequate maintenance cannot be determined unless in-depth investigations are undertaken.