B107 front, B108 mid, B109 rear driving wheels.

6′ 6″ diam., 20 oval spokes, rectangular inner rim, apparent tread 4″, tyre width 5¾″.
Hub 18½″ face dia., 4″ out from the tyre, pin between at 11½″.

Source: preserved loco No 8572 at Weybourne in 1995.

Casting: 45.5 mm tread dia., 40.6 mm i/d, hub 2.3 mm out from the tyre, pin at 6.7 mm.

Casting prices and stock . GER loco sets, price list

Scan of a casting in sets for GE 4-6-0 S69/LNER B12/3