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275x60x22 Would they fit?

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Same size as you have now tires (275/55/22) but as Defenders will soften the ride noticeably, btw. I went from 21s with the stock tires to 22s with the Defenders...and then changed them to sports tires (Toyo Proxies) because I don't want the plush ride. Even going from the 21s to 22s with Defenders it was noticeably a more squishy ride.

So overall it's not that it's a bumpy ride, just that it's making suspension noise that is bothering her? You're hoping softer tires will fix that? I doubt it will.
My thought process comes from a experience with a Tundra I had. Bought the truck with 20" wheels And very low profile tires. They were loud and the ride was rough. All i did was put larger tires on the truck and everything changed. things like smoothness, sound and ride were more plush. To say that going more rubber to wheel will do nothing is against what Ive always known with vehicles.
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UnsungZero_OldTimeAdMan

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Another option is to pick up a set of gen 1 21" factory wheels secondhand. These are pretty easy to find since it's now discontinued. That will give you more sidewall than the R22s. And, there are now three aftermarket all-season tire options available, plus a AT. https://riviantrackr.com/rivian-tire-guide/?size=275/55R21
 

madhat

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My thought process comes from a experience with a Tundra I had. Bought the truck with 20" wheels And very low profile tires. They were loud and the ride was rough. All i did was put larger tires on the truck and everything changed. things like smoothness, sound and ride were more plush. To say that going more rubber to wheel will do nothing is against what Ive always known with vehicles.
I say not because I disbelieve in the principle, but because people have complained about the S suspension noise even with the 275/65/20 tires.
 
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I say not because I disbelieve in the principle, but because people have complained about the S suspension noise even with the 275/65/20 tires.
100% agree it might not RID the problem completely but hopefully dull the noise we are hearing.
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