The Marzocchi ROCO Air RC World Cup gets the best of all worlds with a healthy long travel and a low weight in an all-mountain XC shock. With a nickel coated air canister that's carbon fiber reinforced, you''ll be able to take tons of big hits without worrying about your equipment. Though this shock is by nature a coil shock, it uses a piggyback air valve to keep you from bottoming out and damaging your rig.