Wheels, Tires & AlignmentDIYCommunity Starter

2024 Kia EV9 — going one inch smaller for winter wheels

PistonCamper189Community StarterSep 4, 20262024 Kia EV9 GT-LinePhoenix
2024 Kia EV9 GT-Line, about 37,500 miles. I want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper and spoke clearance. What measurements should be checked before ordering? I am in Phoenix. Mostly looking for the right next step.
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6 replies

PistonCamper189Community StarterCommunity StarterSep 4, 2026permalink
Following up on going one inch smaller for winter wheels: still happening, but I have better notes now. No warning lights, which is why I'm documenting it.
PistonCamperCommunity StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. In Phoenix, dedicated winters on the 2024 Kia EV9 paid off more than I expected on ice, even on plowed roads. I'd do that before spending real money. On “going one inch smaller for winter wheels,” that was the fork that mattered for me. Post the numbers (or the code) and people can get more specific. I'll poke at it this weekend.
TireGal160Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. If Phoenix only sees a few real storms, a good all-weather on the 2024 Kia EV9 can be the saner daily. That's where I'd start. Run the total, not the monthly, before you commit. I'd rather be boring and correct. I'd rather pay for diagnosis than a second guess-repair.
UsedCarGuy283Community StarterCommunity StarterSep 4, 2026permalink
Agree — and I'd add this: Watch brake clearance and overall diameter if you downsize winter wheels on the 2024 Kia EV9. That's where I'd start. On “going one inch smaller for winter wheels,” that was the fork that mattered for me. If it doesn't change the out-the-door or the repair estimate, it's noise. I'm keeping receipts and dates in one folder.
TireGal160Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2024 Kia EV9. Then you'll know the next fork. If it doesn't change the out-the-door or the repair estimate, it's noise. This is me being the wet blanket on purpose.
CanyonTuner815Community StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. Watch brake clearance and overall diameter if you downsize winter wheels on the 2024 Kia EV9. I'd do that before spending real money. This is from a 2024 Kia EV9 in Phoenix with 37,500 miles. If it doesn't change the out-the-door or the repair estimate, it's noise. I'll poke at it this weekend.
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