What wheels does my pack allow?

This is simple yet complicated.

The best we can answer is using this decision tree:
https://www.derbydust.com/information/pinewood-derby-wheels/

If you do not see an answer, then it is not addressed. Therefore it is allowed is the motto of most.

Usually the most common illegal modification is the use of weight reduced wheels. Also written as lessening the weight of a wheel, removing material to make it considerably lighter are common statements made.

BE very CAREFUL of rules that other modifications are not allowed beyond what is listed. Those are the catch all gray rules that could get you eliminated. HOWEVER, there should be NO reason that a car gets D/Q once it passes inspection. After all that is what inspections are about.