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Pumps & CO2 Pump Heads & Small Parts

Silca Gasket for Presta Chuck 242

The Iconic SILCA 24.1 gasket has been updated and improved after more than 30 years in the market. The new 242 gasket utilizes 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 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

  • Fully Synthetic Elastomer Base Material
  • 5X the durability of traditional rubber materials
  • New Two-Stage sealing geometry optimized for all Presta valve stems
  • Pressure amplifying dome geometry uses air pressure to clamp valve stem
  • Made in USA

This gasket only works with older 30.0/30.2 and the new 17-4 Stainless Presta only chucks