The Surevalve ™  is a revolutionary new valve stem / tire valve, it consists of two parts: the base valve and the outer break-away stem.  The base valve sits subriminal and contains the valve core.  The outer valve stem is a break-away stem that is double-sealed to prevent air, dirt, and moisture from contaminating the valve core.   During a severe impact to the Surevalve ™, the outer valve stem is designed to break at the score with no air loss.  The outer stem, once broken can easily be replaced without removing the tire from the rim or the base valve.  The Surevalve ™ was originally developed for added safety on the race track but due to its many applications it is now offered to the public.  The Surevalve ™ Kit comes with 4 valves, 8 shims, 2 extra break-aways for a total of six, and 4 extra .625 inch grommets for rims with larger valve stem holes.  Surevalve ™ caps which are available separately or in the Surevalve ™ Deluxe Kit are used to create a low profile custom look.  Some of the many applications for the Surevalve ™ are: racing, custom wheels, ATVs , off road  trucks, trailer tires, lawn mower tires, semi-trucks, agricultural equipment, golf carts, and much more.  The Surevalve  ™ is an excellent safety device for your tires because air matters ™.