Dune Buggy Class Rules


Time to hit the beach and the dune in your dune buggy. Perfect class for the Tub tracks. These dune buggies handle the jumps and curves excellently.

Chassis Specification

Maximum tech width 1-3/16th inch.
Only Aurora or Model Motoring copper T-jet chassis
Chassis must remain stock without modifications. 
No venting, lightening or trimming allowed.  

Chassis gear plate must remain stock without modifications.   
No weight may be added to the chassis.

Aurora or Model Motoring stock

Grey tip 2 Lam maximum motors with a minimum of 16 ohms.  

No balancing, truing, rewinds, or de-winds.

Electrical System
Stock copper chassis - no modifications
Brushes - flat copper open (maybe scored)
Any copper pickup shoe allowed, no ski shoes (maybe restricted)

Stock Aurora magnets only - no modifications.
Magnets may be shimmed with plastics or non-ferrous metal.


Aurora or Model Motoring Brass - stock or stock replacement 

Beveled gears are not allowed 

Gears may be polished/sanded 

Shimming is allowed with plastic or non-ferrous material
Stock Aurora crown gear or any other aftermarket crown gear for 9-tooth pinion.

Any axles allowed
Aftermarket double flange rims.
DCM-4 Wheels or similar INDY style double flange
No brass or weighted independent front ends.

Front Tires - open minimum height .420 inch.
Rear Tires - slip on silicone, minimum height .460 inch.

No wider than 0.175 inch.

Body Specifications

Dune buggy with or without roofs

Convertible must have windshield, rollbar, and driver
Hard shell, injection, resin cast, no syrene.
Minimum body weight 3.5 grams with screws.
Body may be lowered and lightened.
No body weighting allowed.

Two screws are required