![Silca Hiro V2 Stainless Side Lever Locking Disc Chuck](http://thelionscyclery.ca/cdn/shop/products/DSCF0530_{width}x.jpg?v=1612402821)
What is it?
A locking Presta valve chuck that stays securely connected at 220+psi for road and track situations, allowing both hands to remain on the pump handle, even when inflating disc wheels.
Who's it for?
The Hiro Chuck is a finely crafted tool for those obsessed with the details as well as the experience of cycling. For high-pressure Presta valve applications, there is no better chuck.