Derby Rules

Car Dimensions

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

  • The overall width of the car shall not exceed 2 ¾ inches. 

  •  The car must have 1 ¾” clearance between the wheels. 

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

Other Rules

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

  • If the car loses a wheel or is otherwise damaged, the racer shall have 5 minutes to make repairs. 

  • 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 rules.

Car Weight

  • The car shall not exceed 5.0 ounces.

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

Not Allowed

  • The official pine wood block must be used. The block may be shaped in any way that is desired. 

  • Official BSA wheels must be used. 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.

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