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.
4′ 8″ diam., 14 oval spokes, rectangular inner rim, 4″ apparent tread.
Hub 13″ face dia., 1″ out from the tyre.
Casting: 32.7 mm tread dia., 28 mm i/d., 0.6 mm out from the tyre.
Casting prices and stock . GWR loco sets, price list
Scan of the castings in sets for a GWR 4-4-2 La France.
4 Feb 2015