Remember the not-quite penguin character on The Muppet Show? This little extension reminds us of him. The Fox GAV Gonzo Air Valve is for your rear Fox shock. It makes adding air easy to the Float and DHX Air rear shocks -- some shocks are in pretty close proximity to pivots and rockers and frame tubes and the air valve is hard to access. This widget solves that problem -- the need to run your shock upside down or backwards.