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.
- Full metal construction, guaranteed for 25 years and covered by SILCAShield
- Can effectively seal on valve stems as short as 10mm!
- Uses SILCA 254 High-Tech Elastomer gasket
- Adjustable gasket pre-load allows for custom fit on any valve as well as compensation for gasket wear
- Male Schrader thread fits into any Schrader chuck, or use SILCA Thread-On Schrader Adapter to fit to bare hose
- Bullet-proof high-pressure, disc compatible chuck for high-pressure situations.