3′ 8″ diam., 10 oval spokes, rectangular inner rim. Tyre width 5¾″.
Hub 11″ face diam., ¾″ out from the tyre.

Source: works drawings for the 1400 class, lots 279, 287 and 288.

Casting: 34.9 mm tread diam., 28.6 mm i/d., hub 0.4 mm out from the tyre.
Tyre width for scale modellers: 4.56 mm.

Casting prices and stock . GWR loco sets, price list

Scan of a casting in sets for 2-8-2T 52xx class, 0-4-2T 48xx class, 2-6-2T 31xx class