Abstract: A suspension apparatus includes a spring piston and a spring tube body. The spring piston is slidably disposed within the spring tube body to move within the spring tube body over a travel along an axis of reciprocation. The spring piston bounds a primary positive gas spring chamber at least a first portion of a primary negative gas spring chamber. The suspension apparatus also includes a secondary negative gas spring chamber and a separator. The separator permits fluid pressure communication between the primary negative gas spring chamber and the secondary negative gas spring chamber over a first portion of the travel of the spring piston, and the separator prevents fluid pressure communication between the primary negative gas spring chamber and the secondary negative gas spring chamber over a second portion of the travel of the spring piston.