INDIANAPOLIS (BRAIN) — Silca has released a collection of products aimed at users of road tubeless tires, including new tubeless valve kits and tubeless tape that is optimized for use on carbon rims.
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The Silca Tubeless valve kit is available with four valve stem lengths: 44-, 60-, 80, and 100mm.
The stems are extracted from cold drawn aluminum bar rather than made with a hollow extrusion, resulting in a stem that weighs less than half of a brass valve stems, yet is 50-200 percent stronger than common lightweight aluminum valve stems. The kit also includes Speed Shields, which prevent carbon rims from being scratched or damaged by the valve nut and are optimized with spherical interface to the stem nut to eliminate bending forces which can lead to poor sealing or valve stem failures. The Speed Shield also is said to improve aerodynamics.
Each kit includes two valve stems, two spherical valve nuts and two SpeedShield Rim Protectors. Retail price is from $26 to $34 depending on valve stem length.
The new Silca Replacement Presta Valve Cores are replacements or upgrades for existing valve stems with removable cores, including stems on tubular tires, tubeless rims or clincher inner tubes. The company said the stems “have tight tolerances which allow an increase airflow when you’re pumping up and helps keep out contaminates when sealed.”
The stems are CNC machined from brass with roll-formed threads and synthetic seals that resist again and are resistant to damage from sealant.
They retail for $6 for four.
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Silca also is offering a new 40mm Threaded Valve Extender With Speedshield, which works with tubeless and standard removable valve core valve stems. Silca said the SpeedShield improves the aerodynamics and is ideal for use on carbon rims because they are lighter than brass valve extenders, eliminate annoying rattles over rough surfaces, and protect carbon rim surfaces by damage commonly caused by valve stem nuts.
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Silca’s new Platinum Tubeless Rim Tape uses synthetic adhesive optimized for carbon fiber rim surfaces. The company said the adhesive, combined with a thin, flexible tape surface, creates a better seal than other tapes. The tape is also thinner than others, which aids in tire installation and removal.The tape is available in 21mm and 25mm widths. Nine-meter rolls retails for $16 and $18.
More information: silca.cc.
