If you are looking for the best versatile barbell suitable for strength and endurance training, the XF bar is the best choice. The XF bar, specifically designed and developed for functional fitness training, combines needle bearings and bronze bushings to provide optimal rotation for fast, explosive Olympic movements without compromising performance in heavy powerlifting. The XF bar, ideal for fitness athletes and home trainers, features our least aggressive knurling, which provides a balanced grip with full control while remaining comfortable during higher volume workouts.