See live test graphs of different rear suspension set-ups going over bumps, including the "latest & greatest" by Harley.

There are big differences in how rear shocks work while going over bumps, these live charts shows the difference between a jolt at a bump and a soft push at the same bump.

It works the same on 2 wheel bikes & Trikes.

The rounding of the bumps to a wave instead of a jolt is primarily a function of superior damping.

This is also how the 12" & 13" Twin Adjustable and Pro-Action shocks perform...not just the 14" TSS.

 Check out the video!