Opti Folding Magnetic Exercise Bike Description Boost your cardio workout with this space-saving exercise bike. It's easy to adjust. Just set it to your height and choose the resistance level that suits you best. Plus, it's convenient to store. When you're done using it, just fold it down and put it away. ---The screen can show you how long you've been working out for, the distance you've 'travelled', speed you're going, your heart rate and the calories you've burned. You can easily pick a goal and reach it in no time. 72CM when the seat in min height position, while it is 83cm when the seat in max height position, suitable for the leg length in this scope. ---Magnetic resistance system. ---Hand grip pulse sensor. ---Console feedback including: Scan, Time, Distance, Speed, Hand Pulse, Calories. ---Variable tension control. ---1.