Bigger and better tires on the Rubi are worth something, too. Btw, the big brakes do make a big difference. They are not that much bigger than my JK brakes, but the difference in stopping distance is substantial. I thought my JK's brakes were decent until I drove the JL Rubi. Also, my JK's brake rotors and pads are brand new and better than stock, so the gap would be further apart with stock JK brakes.