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For decades, the Prestaf valve has frustrated cyclists, but a new contender, the Schwalbe Clik, is challenging its dominance. The Clik, featuring a unique mechanical locking system, offers a modern alternative to the traditional Prestaf, Schrader, and Dunlop valves. Developed by industry legend Schwalbe, the Clik’s innovative design aims to solve the longstanding issues associated with bike valves, though its long-term success remains to be seen.