On opening a loco kit, we are usually faced with buying some extras, wheels, gearbox, motor etc. If we are lucky the instructions detail what wheels are required, so off we go to the appropriate website or show stand and exercise the credit card. If no info is available off we go to the "reference library", ascertain what is required and then partake of retail therapy. However I am curious at what is meant by these given dimensions. When a wheel is quoted as being of a particular size, is that purely covering the machined wheel prior to it having the tyres pressed on, or is it a figure accounting for the increased diameter of the tyre too, and if so is it based on a brand new tyre, minimum acceptable thickness or a median figure?
I'm trying to workout if it might be feasible to rework some 00 rtr wheels by turning off the flanges altogether and replacing them with "tyres" scavenged from a suitable aftermarket replacement........ why you may ask? Well no-one does a proper 3mt wheel for p4....... and my hairy shirt is not itchy enough.