Tru-Tension Fill Fast Valve - Black Size:80mm The EFX stem

The EFX stem

Triathlon & Time Trial

or upgrading

Built to serve the most demanding rider’s needs in the lightest weight configuration

Fits both Presta and Schrader valves

Tru-Tension Fill Fast Valve - Black Size:80mm The EFX stemIntroducing FILLFAST, the cutting edge high flow, anti clog valve system. With 3. 75x the flow of standard Presta valves, it redefines efficiency and performance. Engineered for rapid, effortless inflation, FILLFAST sets the benchmark for high airflow tubeless systems, featuring Anti Clog technology for reliable, blockage free performance. Not sure what size to get? Stem length 44mm: <20mm. Stem length 60mm: 20 30mm. Stem length 80mm: 30 50mm.