PInewood Derby Rules

Cub Scout Pack 29


Length, Width and Clearance

a) The maximum overall width (including wheels and axles) shall not exceed 2-3/4 inches.

b) The minimum width between the wheels shall be 1-3/4 inches so the car will clear the center guide strip on the track.

c) The minimum clearance between the bottom of the car and the track surface shall be 3/8 inch so the car will clear the center guide strip on the track.

d) The maximum overall length shall not exceed 7 inches.

e) The wheel-base (distance between the front and rear axles) may not be changed from the kit body distance of 4-1/4 inches.

Weight and Appearance

a) Weight shall not exceed 5 ounces. The reading of the official scale will be considered final.

b) Details such as steering wheel, driver, spoiler, decals, painting and interior details are permissible as long as these details do not exceed the maximum length, width or weight specifications.

c) Cars with wet paint will not be accepted.

Body, Wheels and Axles

a) Axles and wheels shall be only as provided in the Official  Pinewood Derby Kit.

b) You MUST use the block of wood provided. Purchasing pre-made bodies is NOT ALLOWED.

c) Wheels may be lightly sanded to smooth out molding imperfections on the tread area. This light sanding is the only modification allowed. Beveling, tapering, thin sanding, wafering or lathe turning of the wheels is prohibited.

d) Axles may not be altered in any way except for polishing.

e) Wheel bearings, washers, bushings, and hub caps are prohibited.

f) The car shall not ride on any type of springs.

g) The car must be free-wheeling, with no starting device or other type of propulsion.


a) Only graphite will be allowed for lubricating the wheels.


Ground Rules and Competition

a) The race is open to all Cub Scouts registered in this Pack. Parents and Siblings and may also enter but will race separately from the scouts.

b) Each scout may enter only one car in the competition. Several cars may be constructed but only one may be registered and raced.

c) The car must have been built during the current year (the school year in which the Derby is held). Cars that have competed in a previous Derby are not permitted.

d) If a car jumps the track, the race will be run again. If the same car jumps the track a second time, that car will automatically lose that race.

e) If a car leaves its lane and interferes with another car, the race will be run again. If the same car leaves its lane a second time and interferes with another car, the interfering car will automatically lose that race.

f) If a car becomes damaged and can be repaired in a reasonable amount of time (a few minutes), the race will be run again. If not, the damaged car will automatically lose that race.

g) Only race officials and scouts participating in the current race may enter the track area. This rule will be strictly enforced.

Inspection and Registration

a) Each car must pass a technical inspection before it may compete. Technical inspection and registration of cars occurs on the night prior to the race. Please check the calendar for details.

b) The Inspection Committee shall disqualify cars that do not meet these rules. If a car does not pass inspection, the owner will be informed of the reason his car did not pass (too long, too heavy, altered wheel base, or the like). Cars that fail the initial inspection may be modified for final inspection and registration.

c) To enter the race, cars must have passed inspection and be registered by the final Inspection deadline.

d) No cars may be altered in any way after it has been registered. Damage repair shall be allowed during the Derby only if it does not delay the race, but no modifications shall be allowed.

e) After passing inspection, no car shall be re-inspected unless repaired after damage in handling or in a race.



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