Hi All Just been scanning forum & come across this quote

'Profile: smaller no. is lower profile: 30 is hieght 30% of section width, so the 275/30 is about the same diameter as the stock 255/35.'

This is from just another Xfire owner State side , I do not know if they are some sort of tyre size guru ??? . But any infor is good infor in my books ,

So workings out

255/35 255x35%= 89.25

275/30 275x30%= 82.50

I think i have on my Xfire 275/35 so that should give me
275/35 275x35% = 96.25 working out 7 mm larger on radius from standard size

As asked for the link for the wheel people http://www.thewheelspecialist.co.uk/
looks like they have some other shops around England


Cheers

Andy