I was driving around this weekend and blew a tire out. Should I replace all four tires or just buy two new ones? The remaining tires have about 50% wear left.
You might as well go for all 4 if you can afford it, otherwise you'll always be riding on two worn and two brand new from now on. And if you decided to buy all 4 later you'll be throwing away two tires with 50% tread anyways.(Plus the ride quality might not be as good)