Nautilus NB3000 Upright Exercise Bike Upright exercise bike with ultra-quiet V-Force Plus resistance system Commercial-grade Poly-V belt drive delivers near-silent performance Displays time, distance, calories, average speed, RPM, and heart rate Six preprogrammed workouts, two heart rate control programs, and two custom programs Measures 24 x 54 x 42 inches (W x H x D); lifetime warranty on frame