[Scuderia_Turini]

Wheels for slot-cars are a very frustrating aspect. Scaling to the correct size and then finding the appropriate wheels is a big challenge, more so for enclosed wheel cars rather than for single-seater types. Then finding suitable tyres with an age-related sidewall profile is a real pain.  
The various wheel and tyre manufacturers are tending to get the message though though so hopefully this challenge will reduce. 
It would be ideal if resin/other shell manufacturers would specify what wheels and tyres fit their products but I suspect that the artisans simply produce a shell that looks right without really thinking about the need for wheels.

Leo