I'm no suspension expert, but I recently replaced my Rock Shox Bar rear shock on my '08 Mongoose Otero for a 2009 Fox Float RPL. What a differance this has made to this bike. The frame is not the most efficient design but with the Pro Pedal on it has barely any pedal bob. For out of the saddle sprints or for long climbs I can lock it out and it's perfect. This is the best purchase I've made for this bike and has made it tolerable for me until I buy a new frame next season.