No rubbing or any other issues... speedo is not affected, nada. ZDX wheel is pretty much same as an OEM 2010 MDX Advance wheel, different pattern.I wonder how you have 275 width tires on a ZDX wheel that has the same dimensions (19x8.5, +45mm offset) as your MDX wheels with no issues. Arent you rubbing under full turns left or right?
The difference in tread width between the factory OEM spec tire size in the Michelin Premier (which is what I now have on mine) and your non-OEM size Michelin Defender is about 1/3 of an inch. This would be almost impossible to even notice when looking at the tire (the main criteria some people use - just the 'looks' of the tire) and would likely not have a significant impact on performance. Bouncing your non-OEM sized Michelin Defender against the OEM sized Michelin Defender yields a bigger difference - about 6/10 of an inch.So i went and got Michelin 255/50/20 Defender LTX tires after reading this thread.