952 mm (3′ 1½″) diam., 10 oval spokes, vee inner rim, 71 mm apparent tread.
Hub 250 mm face dia., 17 mm, coupled; 27 mm driven, out from the tyre.

Casting: 29.8 mm tread dia., 25.9 i/d, hub 0.5 mm out from the tyre.

Scans of a casting in a set for a Swedish Sexan