So are there any all terrain tires available for our 245/50-20 tire size? I have not seen any.
I did check all the approved fitments on discount tire's site and I didn't see an AT tire in any of the different sizes.Try for a 255/50-20 as an alternate...just a hair larger in diameter, but may open up some additional options for you. While it's not an AT tire (I have no need for that), I'm a BIG fan of the Michelin Defender LTX which is not available in the 245cm wide tire, but is available in the 255cm wide tire. I normally don't prefer to change tire sizes from OEM, but once the original tires that come on my Ascent are "done", I may get braver about this slight difference to get a tire that I truly prefer...
Question regarding the 20” option of AT tire. If we put spacers on rim to bring offset closer to wheel well, do you think this will increase chance of rubbing? I know the answer but wondering if we were to place a 20mm spacer, have you had any experience with that offset (OEM rim + 20mm spacer)?As you've found, A/T tire model selection is slim for lower profile tire applications.
265/50R-20 offers a few A/T options and this size is safely on run on the O.E.M. 20" wheels but you may (stress may) have some rubbing at full lock of the steering wheel. It would be best to test fit the front axle to check clearance if you go this direction. I'll add that this tire is ~3/4" wider and ~3/4" taller when compared to the factory 245/50R-20 size.
265/50R-20 Tire Options | Discount Tire
As Kevin mentioned, if you spend a good amount of time off-road or on the trails a taller sidewall may be something to consider and as pointed out, you can do this by simply changing to a smaller diameter wheel.
Yes, moving a wheel further out towards the fender will increase the chances for rubbing, especially with larger diameter wheels. Think of your wheel wells as bowl shaped. It you push them out too far you are locating the wheel in a shallower part of your wheel well. This restricts how tall of a tire you can run unless you have a large liftQuestion regarding the 20” option of AT tire. If we put spacers on rim to bring offset closer to wheel well, do you think this will increase chance of rubbing? I know the answer but wondering if we were to place a 20mm spacer, have you had any experience with that offset (OEM rim + 20mm spacer)?