The 21.5 late model class is a cornerstone of dirt oval racing, known for its competitive spirit and high-speed action. This class features specific regulations that ensure a level playing field, making it a favorite among racers and fans alike. Unique to this class are the 21.5-turn motors, which provide a balance of power and control, and the strict weight limits that keep the competition fierce and fair.

Chassis 

• Latemodels must resemble contemporary full scale cars racing in “World of Outlaws” and “DIRT” sanctioned

• Minimum weight =53 oz.

• Wheelbase =9.5″ min, 5″ max.

• Maximum tread width =10.0″

• Must be 2 wheel drive, rear wheel driven

Motor

• The only legal motor for 5 Latemodel will be the Motiv USGT Spec motor #GRC2000

• NO rotors, sensors or stators outside of the below specification provided will be considered Aluminum or stainless-steel main can or end bell screws are prohibited for 21.5 Latemodel competition. Intermixing of parts from ANY manufacturer will not be allowed. No parts of motors may be modified, altered or removed in any way. All stock hardware must be used, I.E. no aluminum or titanium screws/bolts. It is not legal to unwind, rewind, unsolder, re-solder, re-epoxy, add epoxy or any other coating or material to any part of the stator. If the solder tabs are found to be tampered with you will be immediately disqualified. All motors are subject to disassembly at any given time during an event at the race director’s discretion. Removal of stator from outer can, will result in immediate disqualification.

• Average motor resistance between two phases (AB, BC, AC) may not be below 7 at 77*F/25*C

• Average timing at 5,000 RPM must be between 30 and 33 degrees (+/-1%)

• Gap between 2 sensors may not exceed 3 degrees maximum

• Rotor asymmetry may not exceed 5 degrees maximum

• Must use stock rotor with USGT engraved on shaft

• May NOT use any parts from the #GRC201O red end bell motor, this includes removal of stator from can and installing in #GRC2000 can, doctoring stator can to appear like a legal can, removing or altering anodization of end bell to be black in Any blatant attempt to use this motor will result in immediate disqualification and possible expulsion

Battery

• 2 cell LiPo, hardcase, 4 volt, hard wired plug (no bullet plug batteries) for connection to the ESC with a maximum 5200 mah rating and maximum continuous “C” rating of 50c. No additional batteries are allowed. All batteries will be checked prior to each race to ensure battery voltage is a maximum of 8.44 volts or less.

ESC

• ESC Hobbywing – XR-10 Justock (PN: HWl30112000 or HWl30112003)are the only eligible ESC’s completely in its stock form. Only the capacitor that comes with the speed controller may be Boosters or anything that adds timing / voltage will not be allowed

Tires

• Foam Tires ONLY. (No Silvers)

• Max wheel diameter:

• 2.0″ Front tire and wheel width:

• Max 1.1″ Rear tire and wheel

• width: Max 1.5″, Min 1.4″

Bodies

• The only bodies legal for the Late model class are those that are DODC approved and listed below. Molded portion of body can be no longer than 22″. All corners of bodies and spoilers must be rounded for Under body support may be added to brace each rear quarter panel and door, but must hold it in stock position, cannot be flared out. Must not be wider than 11.50” forward of front wheel openings and 11” at any point behind front wheel openings. No additional wings, flaps, spoilers, wickers or vents will be allowed. Body may not be altered in any way from its DODC approved configuration i.e.: shortened, lengthened, narrowed, flared fenders etc. Front and rear windows may be removed at trim lines but a flat Lexan or similar material deck must be added in cockpit area. Bodies with add on roofs may leave front and rear windows in or out but roofs must be mounted in stock position. On all bodies side and quarter windows must remain in place. All four wheel wells must be cut out to a minimum dimension of 2.50″ (see drawing below). Rear Spoiler maximum chord from body deck including any wicker bills: 2.00″. Maximum rear deck height from bottom of chassis is 4.0″ . Rear Spoiler

Cap may not be any larger than the drawing below.