Silca Presta Chuck Head Stainless Steel
The iconic SILCA Presta pump head (formerly Silca part# 30.0) has been updated during its transition to American production. The highly efficient push-on design securely seals on Presta valves with no levers or buttons to operate.
The gasket slips onto the valve stem with a positive and satisfying 'click', while the unique internal design geometry actually utilizes line air pressure to compress the gasket onto the valve stem: the higher the pressure that you pump, the harder it grips the stem!