4′ 8½″ diam., 12 spokes, plated between, vee inner rim, apparent tread 3¾″.
Hub 17″ face dia., ¾″ out from the tyre, pin between at 17″.

Source: works drawings.

Castings: 47.1 mm tread dia., 40.7 mm i/d., hub 0.7 mm above the tyre, pin at 11.7 mm.

Casting prices and stock . MOS/WD loco sets, price list

Scan of a casting in a set for a WD 2-8-0 or 2-10-0