General description RockShox Schrader Valve Core is designed to fit suspension air forks, rear shocks, and seat posts. This product is essential for maintaining the performance of non U-turn fixed-travel coil and air spring fork models, as well as Reverb height-adjustable seat posts. Technical specifications Includes: 2 valve cores Compatibility: Non U-turn fixed-travel coil and air spring fork models Also compatible with: Reverb height-adjustable seat posts