Enve Valve Extenders By Silca

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Enve Valve Extenders By Silca are intended for tubular or clincher tires and tubes with removable valve core. ENVE recommends that the length of your tire/tube valve + the length o f your extender exceeds the depth of the rim by at least 10mm. The ENVE Silca Valve Extensions are things of beauty. They are precisely machined, have a gasket that seals in air at the base of the valve, another gasket where the core fits, and the threads are treated with a film sealant to eliminate any air leakage at the threads. There’s also a gasket on the outer wall to eliminate any clicking of the extension against the rim. Show more