[slotloco]

Same information is in the other threads, but repeating here for convenience

MOST wheel makers have a 1.1mm drop to the shoulders, and that is what the major slot car tyre makers use as a base for their tyres.
Most 10mm wide tyres are for nominal 8mm wide wheels - and have a centre width of 5.5mm, and 10mm wide wheels may have a centre width of 5.5mm and up.
Urethanes such as Paul Gage can be made in smaller numbers, which allows them to fit tyres for more odd ball wheels

If you put the car brand and model and the dimensions you wish to fit into your post, it would help people provide you with answers.
And copying my content from another thread.


Some tyre makers and resellers also put the O.D. of the tyre when fitted to the range of rim diameters, just to make life and re-checking even easier.
eg

Slot.it
DWG 1171 mould size
Approximate diameter on hubs prior to trueing
15.8mm hubs 19.7mm
16.5mm hubs  20.3mm
16.9mm hubs   20.6mm
17.3mm hubs 21.0mm

Of course, gluing and truing will alter this a little.