Stairmaster 3400 Upright Bike   Bike Precor C846 Upright Bike Sale Price $795 Features *Adjustable 12-position seat height *Low, step-through design *Changeable seat and pedal options *Drive System    Belt-drive, alternator-based resistance system * 6 Workout Programs           *Display Type  C40 custom LCD *Product Dimensions   58"H x 60.5"L x 23.5"W *Product Weight         125 lbs (57 kg) *Power Requirements         Cordless, self-powered (comes with battery recharger unit).     Stairmaster 3800RL Recumbent Bike Bike Precor C846 Recumbent Bike   Sale Price $995 Features *Performance Features Resistance Levels 1 to 20 levels (0 to 20 in clinical mode with recharger plugged in). *Drive System Belt-drive, alternator-based resistance system ensures a smooth, steady, and quiet riding experience *Programming Options # of Workout Programs 6 *Heart Rate Monitoring Polar-compatible wireless telemetry and integrated contact HR *Computer Features Display Type C40 custom LCD *Display Readouts Heart Rate, Elapsed Time, Calories Burned, Calories Burned Per Hour, Watts, METS, Resistance Level, RPM, Distance and Workout Profile *Details and Warranty Product Dimensions 47"H x 59"W x 23.5"L *Product Weight 157 lbs *Power Requirements Cordless, self-powered (comes with battery recharger unit)     Stairmaster 3900RC Recumbent Bike Bike Precor C846i Recumbent Bike Sale Price $1495 Features * Back-lit LCD-graphic display * Six personal training workouts * One-touch Quick Start program * Flexible speed interval program * Heart Rate Control program * Dimensions: L 60" x W 24" x H 46" *Product Weight: 135 lbs. *Max. User Weight: 400 lbs