A couple inches of ground clearance and wheel gap helps with off road capability. However, it also raises the center of gravity. Bigger tires also increase unsprung suspension weight. Both of these adversely affect handling.
It appears that Jason's employer install the same size tire (diameter) or even smaller-looking than stock.
I know zero about tire fitments for the Ascent. In this particular case, and others tire size may not have been increased. However, AT tires are still going to weigh more than street tires. Then the rim comes into play, some aftermarket rims are lighter than OEM, some are heavier. Keep in mind a lighter rim that is cheap, is of a lower quality than the OEM or more expensive aftermarket rims.
It might bring your sea-sickneess back by going up.
I put on slightly larger tires and heavier rims on an SUV that also pushed out the width an inch or so and it changed the ride and handling completely. Did not like, felt disconnected and not surefooted and ended up going back to stock rims and tires.
Many times changing the offest (or stance width) does funny things. Usually with larger lifts (trucks and Jeeps) you need to go wider to ensure off-road stability. In a street car anything under 3" that is not a concern.
@Carl Abrams I do believe implied their rigs are covered.
We are covering those cars we put modifications on if something happens during a warranty period. Note I am NOT saying that Subaru is covering those things. There's been a lot of discussion between Subaru engineers and our dealership team on these specific modifications, and what they will allow us to do and what is and isn't covered - and I'm not totally privy to all that.
I did NOT mean to imply that Subaru would cover it. There are many truck modifiers out here that do trucks for dealers. Many times these fabricators provide the warranty on products and materials they use. It makes more sense that the dealer would cover a specific part that may have worn or failed due to the modification.
