Silca Disc Wheel Pump Adaptor is designed for inflating tires mounted on disc wheels.
• Threads onto Schrader pumps & is used to inflate Presta valves
• Silca’s CompressionHead design can tighten gasket over 200% by simply tightening cap
• CompressionHead allows you to adjust fit for even the most worn presta valves
• True no-holding disc inflation on ALL style Presta valves including threaded stems
• Metal construction