Attack Fitness Spin Attack M1 Indoor Cycle exercise bikeThe Attack Fitness Spin Attack M1 Indoor Cycle is a high performance exercise bike built for cardio enthusiasts, HIIT athletes, and Hyrox competitors who want to train with intensity and precision. Designed for smooth, consistent resistance and a road like feel, it delivers a powerful workout that boosts endurance, burns calories, and builds lower body strength. Perfect for high intensity intervals, Hyrox prep, or all out cardio sessions, the M1