LEGO® Derby Rules

LEGO® Derby Racing Rules

by , Pinewood Pro

Presented below are the LEGO Derby Rules for racing cars built with LEGO parts down a pinewood derby track. These rules are designed to encourage creativity and experimentation.



Car Weight

  • No weight limit

LEGO Derby Car Dimensions

  • Max Height: 4.5"
  • Max Width: 3"
  • Max Length: 10"
  • The car must have 3/8" clearance underneath so it does not rub on the track center guide rail.

LEGO Derby Axles and Wheels

  • PRO Brick Wheel Assembly or Mini Brick Wheel Assembly must be used to get precise wheel spacing.
  • All four wheels do not need to be in contact with the track; however, each car must have four wheels.

Lubrication

  • Wheels and Axles may be lubricated before the race but lubrication cannot be reapplied during the race or between heats. Excessive powder must be removed before racing.
  • IMPORTANT! Keep lubricant AWAY from the LEGO parts! If any lubrication gets on the LEGO parts, they will separate very easily. You might want to consider gluing the critical LEGO parts together after you are happy with your car design.

Car Modifications Not Allowed

  • Wheel bearings, washers or bushings are prohibited.
  • The car must not ride on any type of springs.
  • So called "cheater bars" at the front of the car to give an unfair starting advantage are prohibited.
  • No starting or propulsion devices.
  • The car must be freewheeling.

Other LEGO Derby / Mini-Brick Derby Race Rules

  • Each car must pass inspection by the official inspection committee before it will be allowed to compete.
  • Any other modifications not expressly forbidden by any of the rules above, are allowed, subject to final decision by a race official.
  • The Inspection Committee may disqualify any car that does not meet these specifications.

Car Repairs

  • If pieces fall of the car, (common in LEGO Derby car races!), the racer will have 2 minutes to put pieces back on the car.
  • No additional pieces may be added when the car is repaired.


Because LEGO Derby Car racing is new, I encourage your questions, comments and feedback. Please call or e-mail.

Want to run a LEGO Derby Race?

Read our new guide:
How to run a LEGO Derby Car Race
lego derby cars on pinewood derby track

LEGO derby cars on Pinewood Derby track



Call Pinewood Pro 203-400-3713 to discuss building and racing cars built with LEGO parts, race awards and race rules.


LEGO is a trademark of the LEGO Group, which does not authorize, sponsor or endorse this site in any way.

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      Pinewood Derby
      Tips & Hints

      Need a little extra weight on weigh in but didn't bring extra weight with you? Use a coin! Here are the weights of US coins in ounces: penny .11 oz, nickel .17 oz, dime .07 oz, quarter .18 oz








      Pinewood Derby
      building Tip

      If your block is cracked, don't panic! The only problem with a cracked block is if the crack is near the axle, which can cause the axle to move. Random cracks in safe areas can simply be filled with wood filler.



      Pinewood Derby
      rules Hint

      When it comes to Pinewood Derby racing, Rules are not meant to be broken. Check with other racers or your race manager before your race to clarify what is allowed and how your car will be inspected when it is checked in.



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    • boy winner cub scout tiger

      Thanks for all your help to get first place in tiger cub class.
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      My daughter won 1st place, and my son won 3rd place. It was very fun and hope to do again next year. Thanks for your great information,
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      We won every race we entered as well as the grand prize for the fastest car! Thanks for your help and interest.
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LEGO® Derby Rules