Unique suspension apparatuses, systems and methods useful for mountain bicycles among other applications are disclosed. In certain exemplary embodiments the suspension is self adjusting to meet different performance objectives. The suspension may utilize pedaling force to substantially stiffen or lock out movement of the suspension, for example, during climbing. The suspension may change its performance under reduced pedaling force to provide performance characteristics desired when a rider is descending. Certain exemplary embodiments include a rocker arm connected to a first frame portion at a first rocker arm pivot, connected to a seatstay at a second rocker arm pivot, and connected to a second link at a third rocker arm pivot. The first link is connected to the first frame portion at a first link pivot, connected to the chainstay at a second link pivot, and connected to the shock and the second link at a third link pivot.