84 mm wheels are arguably the most versatile outdoor fitness equipment available on the market. But we’ll let you decide. In 2022, the K2 84 mm Fitness Series features an entirely new upper material that comfortably fits the foot while being breathable and performance-oriented. The aluminum frame provides stable and agile riding with its more direct power transfer. The K2 Speed Lacing System ensures an outstanding fit and adapts to any foot shape. Thanks to a variety of clever details, the K2 F.I.T. 84 Pro brings you closer to your fitness goals.