Rules & Classes

Download Rules & Classes

UMRA was built around the popular classes of converted dirt bikes, small displacement street bikes, and older GP chassis bikes. As new bikes emerge we will continue to adapt our rules with certain Specs for specific bikes to keep competition fair for sprint and endurance races.

Modern Mini GP bikes

Modern mini GP bikes such as the Ohvale and Bucci will be required to remain STOCK in their USD spec form and will be put into specific classes outside of their spec class. Any mods or engines not considered 2020 USD spec will move them up at least one class.

Pocket Bikes

We do not run pocket bikes of any sort.

Unclassified Bikes

Any bike not listed will be allowed in a class on a trial basis but may be moved and points forfeited.

Combined Races

If 3 or more do not show up you may be combined with another class at race director's discretion.