Dear Katie, it depends a lot more on what type of tires y'all are running than the bike per se. I'm on my third set of knobbies and they all required different pressure. Whatsmore, I stopped bothering to balance them - with enough vibration weights that are taped over with Gorilla tape even manage to fly off due to the fine dust working its way in between the adhesive. Mix that with river crossings and they don't stand a chance. It also depends if you often ride two up or not. I prefer mine on the soft side for better traction. In short, if you go Green Laning a lot than I recommend less pressure.