All new for 2011 is the next generation of O2 air shocks. This year these shocks have been redesigned with focus on what is really needed by riders. Simplicity of use and dependability with amazing performance that's demanded when the trail gets rough. We have developed a high volume version of these shocks with the addition of the AV sleeve allowing the shocks to be made for longer travel and different leverage ratio bikes. From XC rides to big all-mountain epics the O2 shocks are here to elevate your ride.