Bicycle Classification
You can enter Sth-Gbg in any of the five bicycle categories defined below.

Classic
Traditional race, cross, touring or hybrid bike. Folders also belong to this category

MTB
Minimum 60 mm front suspension. Lock-out accepted. Minimum tire width 1.5 inches (38 mm). Minimum extruding/intruding thread 3 mm (No 100% slicks)

SS fixed
Single speed bicycle with no freewheel. Front brake obligatory

Tandem
Two or three wheeled two-person "classic" tandem, or two-person two or three wheeled recumbent

Recumbent
Two or three wheeled single-person bicycle with the rider positioned in a "sitting" or lying position

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