Derby Car Rules

Each car is inspected at weigh-in for the following inspection points:

Pinewood Derby Car Dimensions

  • The overall length of the car shall not exceed 7 inches.

  • The overall width of the car shall not exceed 3 inches.

  • The car must use the standard LegoDerby wheels and axles .

  • The car must have 3/8” clearance underneath the body so it does not rub on the track.

Derby Car Weight

  • The car weight shall not exceed 5.0 ounces.

  • The official race scale that is used at car check-in shall be considered final.

Wheels and Axles

  • The wheels may not be cut, drilled, beveled or rounded. You may remove the seams and imperfections from the wheels.

  • The axles may be altered, polished and lubricated.

Car Modifications Not Allowed

  • Wheel bearings, washers or bushings are prohibited

  • The car must not ride on any type of springs

  • No starting devices. The car must be freewheeling.

  • No loose material of any kind, such as lead shot, may be used.

Other Pinewood Derby Race Rules

  • Once a car passes inspection and is entered into the race, only race committee members can touch it.

  • If the car loses a piece, or is otherwise damaged, the racer shall have 5 minutes to make a repair

  • Each car must pass inspection by the official inspection committee before it will be allowed to compete.

  • The Inspection Committee has the responsibility to disqualify those cars that do not meet these specifications.