Re: 33x12.50 Pro Comp X Terrains Tire Pressure? taco's are pretty light so you don't need to pump 'em up too high. run them at about 35psi for a few thousand miles and if you start to notice uneven wear between the middle and sides of the tread, change the pressure. if the sides are wearing faster (doubtful), run a slightly higher pressure to 'balloon' the tire, and if the middle is wearing faster, lower the pressure to reduce ballooning and wear the sides more. and run 'em where they're comfortable, within reason obviously, mine rides much better at 30psi than 35psi |