They were all spotted from what I have seen. They were changed at some stage to both, but others will know more detail. I have an old memory it was after release due to wheel breakages. You won't find too many 6cyl cars with 6" rims, almost all HK only got them if you ordered (or GMH specified on stock order cars) D70 tyres or P50, P51 or P52 (185x14 local, Michelin or Pirelli) tyres. Also not available on ute or van. They were option codes:

PX4 & P26. D70 high Performance H Whitewall Tubeless.
PX4 & N84. D70 high Performance H Redwall Tubeless.
P50. Local 185x14.
P51. Michelin XAS 185x14.
P52. Pirelli 185x14.


PX4 is the tyre. P26 and N84 are the coloured bands. Both come with N66 wheels only.

There is a story online, I'd have to find it, about the guys who went racing in a HD X2. GMH told them not to race it as it'd break wheels. They told GMH we are racing it and if it breaks wheels it'll look bad for you. GMH supplied stronger wheels! Possibly welded and spotted?

There is an option N99 available across HK passenger. It is the standard ute and van wheel available on everything except GTS327. Those may well be welded and spotted but I believe they are only 5" rims.