ADV Valve Stem- Model A, Model B and Original

In our efforts to continue to innovate, we have invented a tilt valve with replaceable o’rings.  This will allow us to adjust the sensitivity by changing the durometer of the o’ring.  People who want one that reacts like the stock model would get Model A that has the white o’ring.  People who have a Sidewinder that adds to easily can order Model B that has the black o’ring.  We also still carry the original style stem for those that prefer that.  

• Model A
• Model B
• Original Style

Replacement o'rings are available