The LEGO Action Wheelers theme was part of the DUPLO brand and series of Race inspired themes. Included figures in the sets were based on the DUPLO styles. The sets themselves typically feature race cars or other supporting vehicles that came with a screwdriver or other tools where the child can take apart some pieces of the vehicles and re-assemble or replace parts. The Dozer set featured a remote control. The Action Wheelers theme ran in two waves with a totla of nine sets from 2000 and ended in 2001 when the Race theme was discontinued.
2000 LEGO Sets
The turn of the millennium was an important year for LEGO. Not only did LEGO produce some investible sets for 2000, we saw some transition in the company. First, set designer and the inventor of the minifigure, Jens Nygaard Knudsen, retired from The LEGO Group. Second, The British Association of Toy Retailers name the LEGO brick "Toy of the Century". With 2000 LEGO released just a couple of new themes including TECHNIC Roboriders and Race. The Rock Raiders, Nijna and the Slizer/Throwbots themes were discontinued.