Bring Your Group Cycling Class Into Your Home with the Affordable LifeSpan S2 Indoor Bike This easy to use, smooth and quiet exercise bike gives you a great cardio workout with a natural feel of cycling outdoors. Simply adjust the seat and handlebars to fit your body and change resistance to simulate riding through valleys and climbing steep mountains. The no-slip handlebars are designed for three position riding. The seat fully adjusts both in height and fore/aft positions. The simple resistance knob lets you quickly and easily change intensity levels, and standard components allow you to interchange your own favorite seat and pedals. Comfortable, Adjustable Seat The cushioned seat adjusts up, down, forward and backward in any combination for a p.