Standard and metric measurements available. This scooter is an example of how something mechanical can be made just by using standard materials that can be purchased from most building supply stores. This project should be undertaken in conjunction with a capable adult. This project basically involves cutting the pieces of wood to length, marking where the holes are to be drilled, drilling the holes and simply bolting the pieces together.
Many times you have requested plans for a kiddie car such as presented here. The entire job should be made from hardwood such as birch or maple.