For context, I drive a Toyota Yaris on 17 inch wheels. I hit a pothole and got a bubble on my front right tire (the pain of running low profile tires). Anyway, I bough these tires something like 6 months ago and only have 5000-ish kilometers on them. The other 3 still look in perfect condition. I know it’s normally recommended to replace tires in pairs, but is that really needed here considering how new the set is? Feels stupid to replace a tire that is practically new.
If you bought them only six months ago you’d be fine. I replaced a tire after a year of driving the new set and had no issues. If you’re worried you could measure the tread depth of the old ones to confirm they have most of the tread on them.
Might be worth getting a realignment also if you hit a pothole that big. That will make sure you don’t have any uneven wear issues in the future