[nsxtasy]

am I correct that the stock sh-awd wheels are 5x120 19x8.5" with a +55 offset? Slim pickins on aftermarket wheels without doing something crazy like custom vossen wheels. I see Advanti has some 20x9's +45 that would likely work. How about tires? 255/55R19 stock... seems like 255/50R20 would be plus 1, and maybe 275/45R20 might work too.

Keep in mind that the 19x8.5 wheels with 255/55-19 tires are stock ONLY on the base model MDX, and not a whole lot of those are being sold. If that's what you want, though, you can find them. The Technology, A-Spec, and Advance all have 20x9 with 255/50-20 tires, and both Type S models have 21x9.5 with 275/40-21 tires. Any of the wheel/tire combos offered on other MDX trims ought to fit on the base MDX. And if you want a set of stock wheels/tires from another trim, you might be able to find a deal on a set for sale as take-offs by an Acura dealer.

Personally, I really like the gray and machine-finished stock wheels on the Tech package, shown below - all personal preference, of course. And if you like those wheels, it may be worth it to spend the extra $4700 for the Tech package MDX rather than the base package MDX, especially since it will cost you more than half that difference just to upgrade the wheels/tires. And there are so many additional features on the Tech package.

 

[nsxtasy]

It seems previous years used 64.1mm... so I'd just have to buy a ring to upsize that to whatever the new wheel is... 73.1, 74.1, etc. I'll need to pop off one of the stock wheels and measure it to make sure they didn't change it. So many little things like this are unknowns with new model years... its not widely available at the wheel places and its not well documented in secondary places like forums.

It's true that they have changed a lot from one generation to the next. I got so accustomed to Honda/Acura doing things a certain way that I was surprised at the changes with my 2022 MDX. Granted, this is my first new car in a while, but I was so used to 5x114.3 bolt patterns and now it's 5x120, 19 mm lug nuts that are now 22 mm, 80 lb-ft torque recommended for the lug nuts and now it's 94 lb-ft, etc.

Some vendors of aftermarket wheels and tires really know what they're doing and can tell you what will and won't fit properly. I know the Tire Rack has a huge selection and their experts (yes, they are really experts) do an excellent job of advising on what will and won't work.

 

[nsxtasy]

I bought a 50 pack of mcgard 65036 M14x1.5 spline drive lug nuts a couple years back for my truck, and these extras will bolt right up (lucky!).

Just make sure the lug nuts have the same shape seating area as the seating area on your wheels. (The seating area is the area where the wheel and lug nut come into contact.) Many Honda/Acura factory wheels have a ball-shaped seating area (I'm not sure about the '22 MDX wheels - anyone?), whereas most aftermarket wheels have a conical/cone-shaped seating area. Those particular McGard lug nuts have a conical/cone-shaped seating area.

 

[nsxtasy]

I bet it makes a noticeable difference with acceleration, braking, and general nimbleness.

That's extremely unlikely with a difference of less than 1 percent in curb weight, despite the difference being in unsprung weight, if somehow you were able to run a measured, controlled, blind test between the two sets of wheels. But I'm sure your butt dyno could talk yourself into thinking there's a difference even though there isn't any actual significant difference.