here is the lesson on race tyres

there are slicks and semi slicks(radials)

semi-slicks like yoki 0032r come in radial sizes with a maximum profile of 60 series

slicks come in odd sizes mainly the width like 21.5 by the profile 11.5 by rim size 15

so avo forula ford tyres come in 13 inch and yes 6s means 6 inch rim ( you can still fit a six on a 7 inch rim) but the 6inch rim is the better option

hope this helps

yes that curtianly helps

i have seen semi slicks with a OD which again means little to me.

im looking for something cheap that has abit of life left in it to try on my car as i have never driven on anything but good street radials. everyone who has used them highly recommend them and with my currently level of suspension, if im able to get a bit more front end grip ill be able to put something bigger on the back, but i cant do this at the moment because ill upset tyre balance and make it under steer.