What size tyres

francophile1947 · Post by **francophile1947** » Mon Jul 16, 2007 4:44 pm

Hi all
Am thinking of getting larger alloy wheels - does anybody know what width range of tyres will fit 7J and 8J wheels? i.e. 215 to 235 for 7J etc.

chris-m · Post by **chris-m** » Mon Jul 16, 2007 5:01 pm

Hi -
Maybe this will help...
http://www.carbibles.com/tyre_bible.html
look down the page for the "rim width calculator". Fill in the tyre sizes you have in mind, press the button and there you go.

There's an explanation of how it's supposed to work...
"For example, a P255/45R17 tyre, still has a design section width of 10.04" (255mm = 10.04inces). But 85% of 10.04" is 8.534", which rounded to the nearest half inch, is 8.5". Ideally then, a 255/45R17 tyre should be mounted on an 8½x17 rim. "

Hope this is of some use.

francophile1947 · Post by **francophile1947** » Mon Jul 16, 2007 6:30 pm

Thanks Chris