I rode on the stock continentals for about a thousand miles then switched to 225/65 KO2s. I put about 5 thousand miles on the KO2s and decided I wanted more sidewall and off road capability. So I just got 245/65 KO2s and I love them. No big difference in acceleration or mpg. I keep them aired at 32 psi, they increase to 35 when heated up. When I go off road every weekend I air down to 15-20 psi depending on the terrain. All said and done it was completely worth it.
Sponsored