Front and rear wheels designed to match originals, should fit 1/4 inch rear axle but please drill out if too tight. Ill add a rear wheel you can put threaded inserts in with a soldering iron at a later date (NOW UPLOADED AND INCLUDED), tested and working well on my cars but they will only work with an FDM printer NOT a resin printer as the resin just cracks when introduced to 300 degree metal. The bigger wheels, front and rear are a similar design to the standard ones but allow a 35mm tyre to be used the same as you buy for Kamtec and Schumacher Atom 1/12 stock and pan cars. There is also my modified axle blocks that are closer to the originals than the ones in the popular thingiverse Mardave Mini recreation and a steering block that will allow you to use a standard servo saver because my steering block is just solid.You may have to make minor alterations dependant on your printer or settings but they should be pretty much print and go.Support - be careful where you put support especially where the gear wheel section of the rear wheel is. Cura will put support where it needs it and it usually just works but Chitubox will require some messing around to ensure you get the support in the right place so as not to interfere with the gear or the flat surfaces. I usually spin the wheel and print with the open end of the wheel facing up so I dont have to add support to the inside of the wheel and ruin its appearance.