I thought I would share my experience with installing 16 inch wheels for winter in Canada on my 2024 Kona EV. I found a set of 16" Continental VikingContact 7 tires at a very good price compared to 17" (I paid just over $500CAD all-in instead of $800+ for the 17's). I contacted the dealer to find out if I can downsize, and he said no. I was surprised because the ICE Kona comes with 16" wheels on the base trim. I did some digging to find out that the EV has large calipers in the rear and some 16" wheels don't fit (I didn't find any info on the 2024 MY, only previous model). I looked around for some used rims and found a set of old Hyundai alloys (from and Elantra, maybe?). The garage that was selling them tested the fit and there was a little less that 1/4" clearance around the rear caliper: success!
Obviously that's still not a ton of clearance so some 16" wheels might have interference, but worth giving it a shot (16" tires and wheels are cheaper and might even be more efficient).

Obviously that's still not a ton of clearance so some 16" wheels might have interference, but worth giving it a shot (16" tires and wheels are cheaper and might even be more efficient).


