6′ 9″ diam., 21 oval spokes, rectangular inner rim, apparent tread 4″.
Hub 19½″ face dia., 2½″ out from the tyre, pin between at 11″.

Source: works drawing.

Castings: 67.5 mm tread dia., 61.0 i/d, hub 2.1 mm out from the tyre, pin at 9.2 mm.

Casting prices and stock . LMS loco sets, price list

Scan of a casting in a set for a LMS 4-4-0 2P with Stanier drivers