Yeah there 33/70/15 mate
They will go on f1s fine won't they btw..
Ill check how much tread is on them says there good condition if there's a few days left for the price can't complain
Get on Ebay and search for slickersales Dan.
I can get you part worn 195 50 15 Yokohama Advan A048s from the Mini Cup cars, tread and prices vary quite alot though - some sets ive had before have been at 4mm+ others just on the markers, but still good for trackdays
Could you pm me prices for both mate