6′ 6″ diam (with 3″ tyres), later 6′ 7″, 19 oval spokes, rectangular inner rim.
Hub: 16½″ face dia., 1¾″ out from the tyre, pin between at 13″.

Casting: 65.0 mm tread dia., 58.3 mm i/d., hub 1.5 mm out from the tyre, pin at 10.8 mm.

Casting prices and stock . GC loco sets, price list

Scan of the castings in a set for a GC 4-6-0 Class 8F/LNER B4