Originally Posted by
Ben-e-boy
Drop boxes help with ride quality because the radius arms are flatter. Flatter links help to direct the force from hitting a bump through the spring. That energy is then dissipated through the shock.
Links with more angle will transfer more of that force through the link itself, not the spring. That force is then dissipated through your spine.
A very simple exercise is to use a trundle wheel and run it over rough ground holding it near vertical with locked elbows and wrist. You'll feel the force being transfered into your shoulder. Holding it the same way. Crouch down and hold it a close to horizontal as you can and run it over the same ground. Instead of your shoulder getting jarred it will just become a pivot point with much less jarring