1100 mm (3′ 7.3″) diam., 10 oval spokes, rectangular inner rim. Apparent tread 3½″.
Hub 12″ face dia., 2″ above the tyre.

Sources: Works drawing.

Casting: 34.4 mm tread dia., 28.8 mm i/d,
hub 9.5 mm dia, 1.6 mm out from the tyre.

Casting prices and stock . Netherlands, loco sets, price list

Scan of a casting in a set for a Netherlands NS 7100 class 2-4-2T