1030 mm (3′ 4½″) diam., 10 oval spokes, rectangular inner rim, apparent tread 3″.
Hub 11″ face dia., level with the tyre.

Source: works drawing.

Casting: 32.2 mm tread dia., 27.4 i/d, hub level with the tyre.

Casting prices and stock . Switzerland loco sets, price list

Scans of a casting in a set for the Jura-Simplon A2/4 class