Hello lovely people ! I have a pair of ST4 wheels for sale - both gold in colour. Genuine reason for sale (replaced them with a nice pair of Marchesinis). Front one is pretty sound. Rear one has some of the gold paint peeling off around the rim. Fitted with a pair of still fairly reasonable Maxxis tyres. £100 the pair or £50 each (plus P&P). I'm pretty sure they fit lots of other Ducatis, just not sure exactly what... PM me if you're interested...
Six bolt holes... No discs on the front one, but the back one comes with a disc and a sprocket carrier, with sprocket, if that makes any difference...
Just a suggestion: You might try attaching a photo & perhaps a quick reference to your wheels on the Sport Classic section of this forum. Replacing the OEM spoked wheels is a popular modification on the Sport Classics, and using the 5-spoke Marchesinis from an ST4 can represent good value in being able to run lighter wheels with tubeless tyres. Like on the bike wot I ride. Good luck.
They are the three-spoke ones from the original ST4... I'll put some pictures up as soon as I can - I put the original advert up when I was 8000 miles away from my garage...