Decent 175/70 and 165/70 13"s are no longer made. You can still find Khumo Sense in 175/70-13, which are just ok. I think you can still find good 185/60-13’s. Diameters are: 185/60 - 21.7" 165/70 - 22.1" 145/80 - 22.1" 175/70 - 22.7" 155/80 - 22.8"