This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
For Scale7 remove more metal from the back of the wheel to give a tyre thickness of 3.2 mm instead of 3.5 mm.
3′ 3½″, 10 oval spokes, vee inner rim, apparent tread 3½″.
Hub 16″ face dia., 5/8″ out from the tyre.
Source: works drg.
Casting: 23.0 mm tread dia., 18.8 mm i/d., hub 0.4 mm out from the tyre.
Casting prices and stock . BR loco sets, price list
Scan of casting in sets for: BR 2-10-0 9F, 2-6-0 3MT/4MT
27 Mar 2013