5′ 0″ diam., 15 oval spokes, vee shaped inner rim, apparent tread 4¼″
Hub face dias: T117, driven 18″, T118, coupled16″; level with the tyre. Pin between at 14″.

Source: measured direct from a preserved loco at Butterley in 1995.

Castings: 50.0 mm tread diam., 42.9 mm i/d., hub level with the tyre, pin at 11.7 mm.

Casting prices and stock . BR loco sets, price list

Scan of castings in a set for a BR 9F