So the standard disc adapter cost $32 and will get you to 120psi on any valve stem..over 150 on most. It's small and light and easy to use, it just has to be fully engaged to work. Primarily it is designed to adapt your pump for the disc when needed.
The coming chuck is a professional level tool that we've refined over the last 6 months with pro-tour mechanics and world-championship track mechanics. It's solid stainless, (vs aluminum on the adapter) and uses a lever action to compress the gasket after installation. It will hold over 400psi on any stem, is completely adjustable to compensate for both gasket wear and stem size, is easily field rebuildable, and can literally be run over by a team car without issue (inadvertently tested..) Gasket is insensitive to the rapid temperature shifts of using compressed speciality gases or other chemicals, and helps in a situation where say you have to rapidly fill 8 team pursuit tires with a specialty gas within a few minutes as close as possible to a start time.. lots of intricate details had to be sorted out. It has 12 subcomponents compared to 4 in the disc adapter..with all of that, the locking chuck will cost $110 so it's really a different beast from the adapter, but it would most certainly solve your disc inflation problem!
One of our pro mechanics at the Giro sent this to me "4 weeks now and big smile every time I use Hiro. Great feel and no air loss at any pressure. we need 3 more as quickly as you can because (other mechanic) wants his own and we have none on the truck in Spain. I am also using it full time not only on disk wheel and will let you know how the gasket is wearing...'
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