Both "Saint" and "County" shared 6' 8 1/2" driving wheels; whilst the "County" had slightly different crankpin bosses, these were deemed close enough by the famously fastidious builder to be acceptable!
| gauge | 7 1/4 inch |
| length/inches | 11 |
| width/inches | 11 |
| height/inches | 6 |
| weight/kg | 22 |