meem

<center><img src="http://images.cardomain.com/installs/140000-140999/140822_32_full.jpg"></center><p>found this on a bmw forum -- both these tires are 285/40/18 (left one is a pzero, right one is a dunlop sp9000).

it seems a shame that the industry cannot get its act together on tire sizes -- as things stand, the only way to know what will fit is by trial-and-error.<ul><li><a href="http://www.bimmer.org/7series/messages/messages/49320.html">original post</a></li></ul>

Kirk

I noticed that my Michelin Pilot sports are narrower than the Dunlop SP8000e for the same size tire?

CraigB

Tire manufacturers usually list complete specs (overall width, tread width, etc) on their web sites, as does Tire Rack.

CraigB

I noticed the same thing about the SP8000 and certain other tires of the same size

dbtong

you can view tire specs and see that, even within the same manufacturers, the same advertised sizes (namely tire width and tread width) will all vary. my 225/45/17 S-03's are wider than my previous set of same sized RE730's.

GusS

what are you replacing that silver beaut with ?

CraigB

8^)

<img src="http://www.tirerack.com/wheels/images/moda/cars/01_gti_r6_1.jpg">

BTW - I'm keeping the M3. Just need to eliminate monthly payments for a while.

Eddie@Tirerack

Note also- mounted vs unmounted as well in that pic...

Kirk

Would that make much difference Eddie?