e*thirteen engineers understand the perfect tubeless wheel system means rims, tape, tires, sealant and valves must all play their roles perfectly.
Traditional Presta tubeless valves suffer from various weaknesses, like low air flow, clogging, and the need for special tools to remove the valve core, which leaves you with a valve port too small to inject sealant. This meant most of us resorted to the risk of breaking the tire bead and pouring directly into the tire when topping up sealant, or (carefully) mounting tires the first time. No more!
Gen 2 Quick Fill Valves have a unique 4-part design, with a one-of-a-kind valve core carrier, which can be conveniently removed by hand without tools and without removing the valve core. This carrier threads into an oversized valve stem, which fits our 100ml sealant bottle nozzles perfectly for mess-free sealant injection. The valve stem port (without the need to house a valve core), also has an exceptionally large inner diameter of 3.5mm, providing a cross-sectional area increase of 45% over our Gen 1 Valves, and about 10% over new "Filless" competitor valves. This means higher air flow, and less chance of clogging. Securing the valve stem to the rim is a CNC alloy and rubber base nut, which is compatible with all major rim brands, and with tricky tire inserts such as Cushcore. Two sizes are available, fitting most rims on the market.
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