3′ 6″diam., 10 rectangular spokes, rectangular inner rim, apparent tread 2″.
Hub 11½″ face dia., pin between at 9″.

Source: side elevation drg.

Castings: 35.0 mm tread dia., 31.7 i/d., hub 0.6 mm out from the tyre, pin at 7.5 mm.

Casting prices and stock . B and E loco sets, price list

Scan of the castings for a Bristol and Exeter ex Culm Valley Tank with more information.