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The first benefit of the design is the rearward travel of the swing arm in the initial travel stages that counteract chain forces and provide excellent anti-squat characteristics which allow the bike to pedal very efficiently- think cross country pedaling efficiency. Once into the travel, the concentric changes direction (the inflection point) to control chain stay growth that eliminates dreaded pedal feedback and provides uninhibited travel of the suspension. Throughout the course of its travel, the suspension rate goes from falling to rising and back to falling to give an unmatched ride that is efficient yet completely active throughout its entire 6 inches of travel.
Credit
Eddie Clark
