Winner of Design & Innovation and MTBR Editor’s Choice awards, the Reserve Fillmore Valve is a patented leap forward in tubeless tech. Its high-flow, coreless design triples air flow, making tubeless setup fast and effortless — and it won’t clog like traditional valves. The Micro-Adjust feature lets you fine-tune pressure with precision. Backed by a lifetime guarantee. Sold as a pair in 50mm, 70mm, and 90mm lengths to fit a wide range of rim depth.