Hi,
If you mean are the 350 and 500 front wheels the same, then yes they are - WM2 (1.85x18).
For the rear wheels, it depends on whether there is a drum or disc rear brake.
The disc rears are the same for both - WM3 (2.15x18).
Only differences are the colours.
Geoerge
George
350 sport 1978, 350 Strada 1978
650 Norton 1967, 650 Kawasaki 1977 and 650 Enfield 2019