those are some pretty lofty risers. I personally only ride that high on my cruiser. (it's a 32"Sector9 Pintail with 1/2 inch risers on top mount Gullwing SidewinderII. ) And only because I want the feeling of carving on a dime. If that's the ride you're going for, I say rock em! If you're bombing hills though. ...I agree with @NickRadis.