You can, but it'll stretch enough the lip protection is useless. I had Volk 9.5/10.5 with 245/35 and 275/35 tires on my 350Z. So far my favorite is 255/35 and 285/35 with these wheels.
With my current wheels, I'm running 255/35 and 285/30. I didn't know there was plenty of clearance for more sidewall, so next time I'll get something along the lines of 245/40 (or 255/40?) and 285/35 (or 295/30?).
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