The Deadly Dozen Air Bike is a challenging fitness race variation where athletes complete 12 intense exercise stations (called "Labours") interspersed with bouts of high-intensity cycling on an air bike, often requiring 24 calories per interval, designed to test functional fitness, stamina, and mental toughness, offering an accessible yet brutal workout within the larger Deadly Dozen fitness challenge system

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https://www.deadlydozen.com/deadly-dozen-gym-races/airbike-ajs-gym-22-march-26