6′ 2″ diam., 18 oval spokes, inner rim steeply humped, apparent tread 4¾″,
Hub 19½″ face dia., middle boss 12½″dia., middle boss is ¼″ out from the tyre. Pin between at 13″

Source: Green Arrow measured direct at York.

Casting: 58.7 mm tread dia., 51.7 mm i/d., hub middle boss 0.2 mm out from the tyre, pin at 10.3 mm.

Casting prices and stock . LNER loco sets, price list

Scans of castings in sets for LNER Thompson A2/1, 6 wheel tender . Thompson A2/1, 8 wheel tender . P2 . V2