This steel chassis kit is made to fit many open-wheel 50s and 60s slot car bodies, including F1, F5000, and Indy cars. Accepts Falcon and similar motors. Some of the smaller, narrower bodies will not fit over this chassis. For those bodies, use the BD101 Beardog chassis. The image below shows the Monoposto chassis built into a complete car with parts available separately, along with a 50s GP car body typical of the kind that readily fit over this chassis.Soldering required for assembly.