Back in the day they were either 8 or 10" and were called "a set of fats" .
Probably can't use that term anymore , someone might get offended.
The 10" ones were banned for being too big .
Certainly look good on a stream lined body like that. It was a popular body shape and white is a good colour as well.
It looks like it is a GT so would be worth a bit these days. They've ballooned in price .
