This rally will run under the NASA Rally Sport General Regulations for Rallies. The GRRs are available for download on the NASA Rally Sport regulations page. The GRRs contain the rules on how the event is run, and how to construct the vehicles.
Since RallyMoto™ is a relatively new sport, the rules for constructing bikes hasn't made it in to the main rule set yet. Please refer to the RallyMoto™ Regulations on NASA Rally Sport.