3′ 8″ diam., 10 oval spokes, apparent tread 4¾″, tyre thickness 5⅜″.
Hub, 12½″ face dia., ¾″ out from the tyre.

Sources: No 4472 measured direct at Llangollen in Feb. 1995.
O.S. Noch, British Locomotives of the 20th Century, vol 1: page 218. Detailed works drawing.

Casting: 49.5 mm tread dia., 38.9 mm i/d., hub 0.8 mm out from the tyre.

Gauge 3 loco set prices . Casting prices and stock

Scan of a casting in sets for LNER Gresley A1/A3 .

Suitable for the Gauge 3 Society 2010 minimum tyre width of 6.8 mm, or the earlier standard of 8.0 mm.