BSCOBBER Tubeless Presta Valve Stems are engineered for cyclists who demand reliability, performance, and hassle-free maintenance. Whether you're grinding through a gravel race, pushing limits on a mountain trail, or putting in miles on the road, these valve stems deliver an airtight seal that keeps your tires inflated and your ride smooth. Crafted from high-strength aluminum alloy with an aerospace-grade anodized finish, each stem weighs just 5.6 to 7.4 grams. This lightweight construction reduces rotational weight, giving you quicker acceleration and better climbing performance without sacrificing durability. Maintenance is simple with the removable Presta valve core. Use the included tool to quickly inject sealant, adjust air pressure, or perform roadside repairs—no special skills required. The enlarged rubber base ensures a leak-free fit for most tubeless rims, so you can ride with confidence on any terrain. This complete set includes two valve stems in your choice of Black or Orange, plus two FR10 and two FR12 spare rubber gaskets. Available in 44mm, 60mm, and 80mm lengths to fit a wide range of tubeless-ready wheels—from road bike carbon rims to deep-section gravel and MTB hoops. Upgrade your ride with valve stems that combine precision engineering, lightweight performance, and all-in-one convenience. BSCOBBER— built for the road ahead.