3′ 3″ diam., 10 oval spokes, rim with a raised central hump, 4½″ apparent tread, tyre width 5⅜″.
Hub 12½″ face dia., 2¼″ out from the tyre.

Source: No 1572 (=No 8572) measured direct at Weybourne and GER Soc drg.

Casting: 31.0 mm. tread dia., 23.9 mm i/d., hub 1.8 mm out from the tyre.
Tyre widths for exact scale models at 1:32 is 5⅜″ = 4.27 mm. (Stated on GER Soc drg.)

Casting prices and stock . GER loco sets, price list

Scan of a casting in a set for a GE 4-6-0 S69