ProForm 135 CSX Upright Bike Adjustable seat, step thru design, water bottle holder, Transport wheels, 250 lb. Weight capacity 16 Digital resistance levels, 14 workout apps Ekg grip pulse, 12 lb. Effective Inertia-Enhanced flywheel IPod compatible audio, large LCD window display, watts power meter The Preforms 135 csx is protected with a 5-year frame Warranty and a 90-Day parts & labor Warranty