Stan’s lightweight aluminum valve stems offer a high-performance, weight-saving upgrade for tubeless setups. At just 8g, 9g, or 10g per valve for the 35mm, 44mm, and 55mm lengths respectively, these stems are about half the weight of standard brass options—making them a smart choice for racers and gram-conscious riders alike. Each valve features a secure round base that ensures a snug, airtight fit on most tubeless-ready rims, and they’re designed to work perfectly with all Stan’s BST and BST-R rims. The removable valve core allows for hassle-free sealant injection, helping you top off or refresh your tubeless system without removing the tire.

Compatible with up to 8mm valve holes, these aluminum valve stems offer wide versatility across a range of rim designs and disciplines, from road to gravel to mountain biking. Sold as a pair and available in bold anodized colors—black, red, blue, green, and orange—they add a personal touch while reducing rotating weight. Whether you're dialing in a race-day setup or just looking to streamline your ride, Stan’s aluminum valve stems deliver reliability, simplicity, and performance in one sleek package.