Parametric RC Car 12mm Hex Wheel Blank

I've been working on wheels lately and really like making them parametric, but also form follows function, and I just wanted to post some basic ones that can be used for bashing. These are parametric with offsets from -8mm to +8mm. On my Tamiya 911 Porsche GT3 (993), the ideal seems to be -4mm in the front and +0 in the back, which is what is provided in the print file. These will fit the 10mm hex wrench that comes with tamiya kits. Tire width and diameter are also parametric.