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Fat Bike Birkie
Fat Bike Birkie 2025
American BirkebeinerThe Big Fat 47K Race • The Half Fat 21K Race • The Fun Fat 10K Tour The Fat Bike Birkie is North America’s premier on-snow bike event. Riders test their skill and endurance on the professionally groomed American Birkebeiner Ski Trail, with options for every rider’s ability level. Choose from three epic distances: the…