The ones that start it all for Fox Racing Shox. Invented by Bob Fox in 1974, the current Fox air shock line up has grown to include 2.0" & 2.5" Air Shocks as well as 2.0" & 2.5" Air Bump Stops. Designed specifically for rock rigs, pre-runners, and sand cars. These shocks are completely adjustable to accommodate a wide range of suspension loads.