A high-strength and low-weight valve stem kit that is designed for tubeless. Included SpeedShields improve aerodynamics while preventing the valve nut from damaging the rim surface.
Cyclists in search of aluminum valve stem kit that perfectly balance lightweight and strength with an engineered solution that improves valve stem sealing, eliminates rim scratches, rattling and improves aerodynamics.
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.
High precision CNC machined Aluminum Valve Extenders
Knurled spherical nuts to eliminate bending load on valve stem
Custom molded silicone shield with 3M adhesive backer
Less than half the weight of brass valve extenders
SpeedShield Improves wheel aerodynamics up to 0.5 Watts at 30mph
The SILCA Tubeless Valve Kit with SpeedShield is ready to use when removed from the package.