640cc & Up, Max 2 Riders

Last Updated July 24, 2023

DEFINITION

Amateur riders. Riders in this class must be eighteen (18) years old minimum. Motorcycles with any engine 640cc or larger. Bikes must be street legal, have current registration and license plate.

GENERAL REGULATIONS

Entrants in this class shall comply with all applicable general regulations.

TECHNICAL REGULATIONS

Entrants must be able to show proof of age to compete in this class. Participants competing in age restricted classes must be of age by the date of the event that they are competing in. All riders and co-riders must meet age requirement. This class is an open class and all components will be considered open unless restricted herein.

NOTE: The TR abbreviations listed under this class (I.E. TR1 HELMETS) refer to TR cross reference listings in the front of this book. These TR cross-referenced listings are part of the class rules. Where a conflict occurs between the TR cross- referenced listing and a rule contained under this class, the rule contained under this class takes priority.

SAFETY EQUIPMENT

TR1 HELMETS

TR2 PROTECTIVE CLOTHING

TR3 EYE PROTECTION and DENTURES

TR5 FIRST AID KIT

TR8 REFLECTORS

TR10 SURVIVAL SUPPLIES

SUSPENSION COMPONENTS

TR13 WHEELS and TIRES

TR14 FASTENERS

STEERING and BRAKE COMPONENTS

TR15 STEERING

TR16 BRAKES

ELECTRICAL SYSTEM

TR17 IGNITION

TR18 BATTERIES

TR19 LIGHTS

FUEL SYSTEM

TR21 FUEL

ENGINE, TRANSMISSION and DRIVELINES

TR24 ENGINE and ENGINE DISPLACEMENT

640cc or larger.

TR25 ENGINE REPLACEMENT

TR28 EXHAUST

TR31 FLUID COOLERS

GENERAL VEHICLE COMPONENTS

TR48 CHASSIS and BODY

Dual Sport motorcycles only.

TR49 HOSES

TR50 IDENTIFICATION MARKINGS

Unlimited Off-Road Racing will assign race numbers.

TR51 ADVERTISING on VEHICLES

TR52 RADIO EQUIPMENT

TR53 WORKMANSHIP

TR54 TRACKING DEVICE