Silca Aluminium Disc Chuck
- Threads into any Schrader pump head
- Can only be used to inflate Presta valves
- Exclusive 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
- Full metal construction, no plastic parts to wear or fail.
- Available only in BLACK