6′ 9″ diam., 21 oval spokes, reinforced near the pin, vee inner rim, apparent tread 4″.
Hub 20½″ face dia., pin between at 13″, central boss is 1½″ out from the tyre.
Source: Kohlhapur at Loughborough in 1995, measured direct.
Casting: 64.3 mm tread dia., 58.1 mm i/d., hub centre 1.6 mm out from the tyre, pin at 10.3 mm.
Scan of a casting in a set for a LMS 4-6-0 Jubilee
27 Mar 2013