Bikes of this category are designed for riding on hard-surface roads where the wheels remain in permanent contact to the ground. These are in general road racing bicycles with racing handlebars or straight handlebars, triathlon or time trial bicycles. The permissible maximum overall weight comprising rider, luggage and bicycle should not exceed 120 kg. Under certain circumstances this permissible maximum weight can be further limited by the component manufacturers’ recommendations for use. Proven cyclocross and gravel bikes with racing handlebars and cantilever or disc brakes are a special case in this category. In addition, these bikes are also suitable for gravel paths and off-road trails where a short loss of tyre contact with the ground due to small stairs or steps at a height of 15 to 20 cm can occur.