Silca Presta Chuck
Crafted from aluminium, the Silca Presta Chuck features a new 242 gasket, utilising a high tech and very red, fully synthetic elastomer base material rather than a carbon black filled natural rubber of previous gaskets. This unique bright red gasket borrows from industries which require air-tight seals in the harshest of environments, and tests to a life expectancy of more than 5X the carbon filled rubber or Buna-N materials used previously. New Two-Stage seal geometry seals on both valve stem and at the base of valve core threads resulting in a more positive seal and improved durability. The new gasket slips onto the valve stem with a positive and satisfying 'click', while unique internal geometry actually utilizes line air pressure to compress the gasket onto the valve stem: the higher you pump, the harder it grips the stem!
Features
- Iconic Silca Presta Head Design - in use by more pro team and shop mechanics than any other
- Aluminium
- Full Synthetic Elastomer 242 Gasket
- 5X the durability of traditional rubber materials
- New Two-Stage gasket sealing geometry optimized for all Presta valve stems
- Pressure amplifying dome geometry uses air pressure to clamp valve stem
- Schrader valve thread on hose side threads into any Schrader compatible hose attachment
- Lifetime Warranty
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