Tubeless valve kit w/SpeedShield

What is it?

The highest quality Tubeless Valve stems with SpeedShield Rim Protectors for reduced weight, improved aerodynamics and more robust tubeless conversions, especially with carbon and deep section wheels.

Who's it for?

The uncompromising cyclist running a tubeless set-up on rims less than 30mm to 65mm deep.

Why We Designed It | Product Specs | Getting Started

Why We Designed It:

SILCA Tubeless valve stems are designed to strike a balance between weight, strength, airflow and ease of installation.  We started this project out of our own frustration at the two extremes of product in the market: inexpensive, heavy brass valve stems, or uber-lightweight aluminum stems that had reputations for being problematic in the field.  In classic SILCA fashion, we set out to understand the issues and develop a better solution.


Perhaps the most exciting feature of the SILCA tubeless program is the SpeedShield. SpeedShield grew out of our frustration with valve stem nuts scratching our rims...particularly our carbon rims!  The concept developed through an initial study we did on ways of improving aerodynamics around the valve stem, which proved out that 'shielding' the valve stem could save about 0.15-0.20 watts of energy per 10mm of valve stem encased in the shield.



  • Less than half the weight of brass valve stems
  • 50-200% Stronger than typical aluminum valve stems
  • Ultimate level, fully machined brass valve cores with improved airflow
  • SpeedShield Improves wheel aerodynamics while protecting carbon rims
  • Spherical nut eliminates bending forces on valve stem for improved strength
  • Kit contains 2 Valve Stems, 2 Spherical Valve Nuts and 2 SpeedShield Rim Protectors

Getting Started:

Please consult with your wheel or rim manufacturer before converting any product that is not already deemed Tubeless compatible for further instruction.

Tubeless valve kit w/SpeedShield is ready to use when removed from the package. If you would like to learn more about features, functions and maintenance of the Tubeless valve kit w/SpeedShield, please visit the SILCA resource center. 


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