回複:Why not to buy one tire with matching spec and depth?
1. It's hard to find same model/brand/%wear for a used one
2. You will spend 4x time just for tire changing (assume you will do the same for 2nd, 3rd, and 4th tire), get a job! 4-8 hours can pay for all your tires
3. Don't throw away the other. It's a good full size spare or re-use it with 5 tires rotation (when match your %).