Silca Hiro V3 Carbon Steel Side Lever Locking Disc Chuck

What Makes the SILCA Hiro V3 Chuck Better Than a Standard Chuck?

The SILCA Hiro V3 is a carbon steel side-lever locking disc chuck that attaches to your pump hose and allows one-handed, tool-free connection to any Presta valve. The side-lever mechanism clamps the chuck mechanically to the valve stem rather than relying on friction, which means the connection holds under high pressure without hand effort and releases cleanly without pressure drop. The carbon steel construction with 252 gasket compound means the sealing surfaces are significantly more durable than the standard rubber gaskets found in OEM chucks, with a tested blow-off resistance multiple times higher than competing designs.

Threads onto the SILCA pump hose and replaces the stock chuck on any SILCA floor pump. Compatible with the full range of SILCA pump accessories including the Aluminum Disc Chuck. For track cyclists, triathletes, and anyone inflating to high pressures regularly, the Hiro V3 is the chuck that makes the process efficient and leak-free every time. Made in the USA.