The Iconic SILCA Presta Only Head (formerly the 30.0) has been updated during it's transition to American production. The classic brass material has been replaced by the much more exotic 17-4 Stainless Steel, a precipitation hardening stainless utilized in aerospace, petrochemical processing, military aircraft, and even as ultra-high strength bicycle tubing. Whereas brass may have been a material to last a lifetime, 17-4 is a material to last many lifetimes. 17-4 is more than 6X stronger than brass and 4X harder resulting in parts that last longer and are nearly impossible to damage or wear out.
In a world where aluminum is used to replace brass for cost, and plastic is used to replace aluminum for cost, and so on, we felt the need to re-imagine this most iconic of cycling tools as an heirloom quality objet d'art. The utmost care has been taken to machine the part using mono-crystaline diamond tooling to get the perfect surface finish, while the final feel of the part benefits from an investigation into more than 20 different styles and depths of knurl so that it will feel 'just-so' in your hands as it provides a lifetime of useful enjoyment. This is truly a tool you will hand down to your children and they in turn onto theirs.
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 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!
WESTBROOK CYCLES DELIVERY NOTICE
FREE when you spend over £50.00 in a single order
Otherwise it's typically £3.99 per order
Delivery should be expected between 2-3 working days unless stated on product page.
Approximately 4-10 working days depending on country
via Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.
If your country isn't listed for delivery at checkout please contact us.
We ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).
All our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.
We do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.