The Hydrorider Aquabike Professional us good if you would like more training options and suitable for the athlete looking to cross-train. It offers athletes a way to improve their cardio endurance, stay fit if injured, and train more often without muscle soreness. It also provides faster recovery from events and intense training. The water supports body weight as the water improves cardio fitness and blood flow. The hydrostatic water pressure increases blood circulation, which energises your muscles. That means less fatigue, micro-damage to muscle fibres and connective tissue -- everything that causes the next-day soreness. The water cycle workout complements other training while relaxing and soothing muscles for faster recovery. Like the Pro-Fix The Hydrorider Professional offers the longest and deepest paddle on the market for maximum resistance. The difference to the Pro-Fix is you can select levels that even as you slow your speed, the pedal resistance stays the same.