Try that on the RAZR fronts and see how it handles. My brothers Z400 is labeled as 4 front and rear using factory tires. We set it 4 and trying to turn was like the tire was flat. It pushed and slid across the ground instead of actually biting, digging, and turning. Guess what we did.... ran them at 8psi and it handled perfect again. We also found that on his bike it felt the best when the rear RAZR's were at 7.5psi.duhh ths is wat u should do either way. just add 1 take 1 depending on condition. whoever said they run 8, damn.