After installing the Glide-Pro Stabilizer System, I noticed a dramatic difference in the handling quality of the 2007 Road King. The Glide-Pro reduced the wobble effect without increasing vibration. This easy to install product still allows the motor to move front to back like it was designed to do, yet reduces the lateral flex that is often encountered on rubber mounted touring models. What this means to the rider is better handling, especially at higher speeds. — Brad Olshen- Hot Bike Bagger Magazine