Originally Posted by
D-nicest
I'm sure you don't need a 2mm offset rim, as most tire manufactures I know of don't even offer that option anymore. I don't own A G4 my self but seeing that its the 09 version your asking about, I'm positive it works properly with today's current rims.
I have always thought that the purpose of offset rims was to make it quicker to change trackwidth of a car in practice sessions, or that's what I have been told. Is there another purpose? Quick changes of trackwidth can also be achieved by using one or two 0.5 mm shims that can be removed quickly.
I know of a guy who ran 2nd in qualifier of a very big event (Worlds at Brendale); but was disqualified after a quick tire change in a qualifier when track conditions changed after a rain storm, because he had mixed up some offset tires amongst the standard width. His car came in 1 mm too wide in scrutineering; so its important to label tires for those who play around with offset rims.
Kindest regards,
Lars.