Product Info Fillmore is one of those upgrades you don't know you need until you try it. High-Flow, no-clog, micro-adjustments 50mm valve made for rims up to 28mm deep Airflow - 3 times the airflow as a standard Presta air valve, easing tubeless tire set-up and reducing pumping force No clogging - Patented poppet-style design eliminates clogging by shielding air hole from contact with sealant Simplicity - Ability to inject sealant without removal of valve core simplifies maintenance Adjustable - Micro-air adjustment feature allows for precise trail-side pressure changes