4′ 1½″ diam., 12 oval spokes, rectangular inner rim, 3″ apparent tread.
Hub 16″ face dia., ¾″ out from the tyre.

Casting: 28.9 mm tread dia., 25.3 mm i/d., hub 0.4 mm out from the tyre.

Casting prices and stock . GWR loco sets, price list

Scan of the castings in sets for a GWR 2-8-0 47xx, 4-6-0 Castle, 4-6-0 Star, 4-4-2T North Star.