5′ 3″ diam., 16 oval spokes, rectangular inner rim, 4″ apparent tread.
Hub 15¼″ face dia., 1¾″ out from the tyre, pin in line at 11″.

Source: 4F No 44027 measured direct at Butterley in May 1995.

Casting: 50.0 mm tread dia., i/d 43.3 mm, hub 1.4 mm out from the tyre, pin at 8.73 mm.

Casting prices and stock . MR loco sets, price list

Scans of castings in sets for MR 0-6-0 4F . MR 0-4-4T 2228 class