3′ 6″ diam., 10 oval spokes, distinctly ridged inner rim, apparent tread 4¼″.
Hub 19¼″ face dia. 1½″ out from the tyre.

Source: Johnson. Locomotives of the Great Central Railway, vol. 2, reduced works drg. in back of book courtesy of the Museum of Science and Industry, Manchester.

Casting: 33.34 mm tread dia., 26.0 mm i/d., hub 1.2 mm out from the tyre.

Casting prices and stock . GC loco sets, price list

Scan of a casting in sets for: GC 2-8-0 8K . GC 4-6-0 9P