I have finally decide for the new set of Volk. I want to run 245-35-19 and 275-35-19 front 8.5 rear 9.5 what offset will i need for the SF Challenge. Please help me out here Thanks advance.
I know ZRED is running 21mm offset all around.

 

the Offsets will be 1985 21 offset for the front and 1995 23 offset for the rear

 

That's the exact size rim/wheel and offset I run on my G. It BARELY clears the fender with Eibachs. Not sure if it is the same with the Z. Good Luck, great wheels.

 

the hyper rev mag shows a Z with 19x9.5 +19 front 19x10.5+17 rear, super deep dish, with the brembo setup and dropped 50mm, looks hot, but to be safe i would go with what revhigh says. These could be j-spec only rims.

 

can someone explain how the offset works im about to buy rims....

 

offset gets explained in the FAQ sticky up top.

 

Thanks Rehigh but i have a question, why is he running 21 offset all around? is it because he want a bigger lips in the back?