Might be stating the obvious (to some) but something I didn't realise until I started trying to pick tyres for aftermarket wheels is that the profile figure - e.g. 40 - is 40% of the width.
So for a 255/40/17 tyre - diameter is 255mm, profile / side wall is 102mm (40% of 255), and radius is 17inches.
Learning this made it all make a lot more sense to me. I also have this graphic to refer to. Can't recall where I found it but it's now saved on my desktop!
I also wanted a chunky looking tyre with a solid side wall and after going 245(F) / 265 (R) , have since switched back to 235(F) / 255 (R) as I found the handling was noticeable more boggy and I use the car for fast road and track use. For ref, these tyres are on 18" BBS LMs.
By
sumshiftyguy ·
Well 2 cars I work on are in the Christmas Japanese Performance!!!
The ugly Green Impreza that blocked Bob Zed out of shot at 10 of the best!!!:laugh:
http://www.300zx.co.uk/forums/showthread.php?t=154753&highlight=totb
And the Ex works Mazda 323 super touring car I have just finished restoring!!!
Well chuffed and trying to get them to do an article on my barn find 300ZX!!!
Daz.:thumbup: