THE SYNTACE HIGH FLOW VALVE PEFECTLY ADAPTED TO THE SYNTACE RIM SHAPE
As a result of the bigger diameter at the narrower section of the High Flow Valve, it is possible to inflate the tire faster with more air at a time. This way, the tire finds its way onto the rim flange even more reliably.
Syntace High Flow 7 Tubeless Valve Pair
Weight - 4.6gm
Diameter - 6.9mm
Outer thread - M7 x 0.75
Valve hole diameter - 7mm
For older rims the diameter most likely needs to be widened to 7 to 7.1mm.