Alright, sorry... The Energy' bump stops were just an improvisional choice I made when I needed to replace my factory bump stops and some other people have followed that lead cuz it is simple. I4x doesn't offer anything for rear bump stops as far as I know. You can find your own bump stops to use though. I jumped a railroad crossing the other day at 50 mph and the extra stiffness of the poly bumpers caused the VX to land/bounce a little funny. And they also have a tendency to "spring back" a little heavy on speed bumps as well. That is the annoying part of using these bumpers. If you can locate some rubber bump stops or lower your factory ones using a fabbed spacer you may be better off. There, that's a better answer for you...![]()