Different Series Tyre Sizes

[boxheadmr]

Would like a little help with finding out what series uses what size tyres, i am looking at wheel sizes and widths but want to make sure i get a common size that a particualr series uses so the tyres won't be as expencive.

looking at a Semi Slick tyre (RE55, R888 etc)

I was using 235/45 R17 but am going to a wider rim, most probally a 18x10.5 but could go a 17x10 if it is more cost effictive for the tyres.

Tyre size would want to be anything from a 265/35 or 30 R18 to i think a 315x35 or 30 R18

or

for the 17x10 could go a 255/40,35 or 30 R17 to a 305/40,35 or 30 R17.

What racing series uses these size tyres?

Edited April 6, 2008 by boxheadmr

[Duncan]

no controlled series runs tyres that big. saloon cars are about 225 - anything bigger generally runs slicks

[boxheadmr]

Duncan,

i thought some of the porsche guys ran sizes like this, interestingly what size slicks are common around this size.

[Duncan]

sorry yes they do, porsche cup is around that size and so are the super taxis 265 I think. But didn't you say semis? All of those guys run full slicks