Porsche wheels

Just bought a set of 928 alloys and tyres but they dont come with the adaptors. So my question is which one s will i need to fit them to my Golf Cabrio, 1989. The tyres are 195/45v16  and the wheels are 7j front and 8j rear, i have no idea what this means  :dontknow:

Also they need a polish so what do you all reccomend?

These are the wheels



Thank you  

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Pics not showing as were moved..but 195 45 16 are perfect up front, touch stretched on rears, but makes for better clearence…


Still need to whack them on my tinny, but when i test fitted on cabby with coilys was using 22mm dapters all round, was touch close up front so got 25mm for fronts in end. Yet to be tested again so will see, but i wanted them as 'in' as possible to avoid any arch working - sure i read someone was happily running them on 35mm spacers too

Nice one, currently running 17s on my cabby with no rubbing. What do i have to use to polish the wheels up? Apart from elbow grease  

Couldnt tell u bud as not done mine, were laq'd after dimond cut to keep em easy to maintain