Abstract
In the increasing number of dead and injured in motorized to-wheeler traffic a disproportionate number of 15 to 18 year old riders is included. The blood alcohol content forms the highest accident risk, next come the medicines. Measures must be taken against the sale of motorized two-wheelers to 5 to 8 and 8 to 14 years old. For these mofa- and moped-riders a rider's licence must be introduced. Recklessness also is often a cause of accidents.