6′ 8″ diam., 21 oval spokes, rectangular inner rim, apparent tread 4″.
Hub 16¼″ face dia., 3½″ out from the tyre, pin in line at 11″.

Source: Preserved loco. No 737 measured direct at York in 2001.

Casting: 66.7 mm tread dia., 60.7 mm i/d., hub 2.9 mm out from the tyre, pin at 9.2 mm.

Casting prices and stock . SECR loco sets, price list

Scan of the castings in a set for a SECR 4-4-0 D class.