SILCA 242 Gasket for Presta Chucks - SILCA | gasket | bike gasket

SILCA 242 Gasket for Presta Chucks

Regular price$ 9.00
Rated 4.9 out of 5 stars
88 Reviews

The Iconic SILCA 24.1 gasket is the heart of the press-on Presta chuck. The current 242 gasket utilizes a high tech and very red, fully synthetic elastomer base material.

• Synthetic elastomer base material
• 5X the durability of traditional rubber
• Two-Stage sealing geometry
optimized for all Presta valve stems
• Pressure amplifying dome geometry
uses air pressure to clamp valve stem
• Fits all bell-shaped SILCA Presta heads
• 9mm H x 21mm OD

Limited Warranty


Parts covered by SILCA Limited Warranty are considered to be subject to wear through normal use or are consumable subject to degradation through the course of their daily use.  SILCA guarantees them free from manufacturer defects for 2 years.

     This unique bright red gasket borrows from industries which require air-tight seals in the harshest of environments. It 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 the pressure, the tighter the seal. This design is so iconic we've found more than 20 companies world-wide making pump heads and gaskets copied from this, but none of them can come close to the precision and technology of the SILCA 242.

    Rated 4.9 out of 5 stars
    Based on 88 reviews
    Total 5 star reviews: 83 Total 4 star reviews: 4 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
    99%would recommend this product
    88 reviews
    • Robert M.
      Verified Reviewer
      I recommend this product
      Rated 5 out of 5 stars
      1 minute ago
      Great Replacement

      I was struggling with the original 40 year chuck gasket in my pump. It would leak like a sieve and I would have to pump more to compensate. Installed this new gasket today. No leaks. No problems. Highly recommended.

    • Steven B.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      1 month ago

      Better than the original

    • Aaron L.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      3 months ago
      Works great

      I was getting leaking so I popped in the new one - problem solved.

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