Airdynes
Model Number
AD8 - for 220V countries
AD7 - for 110V countries
AD7 - for 110V countries
AD6i - for 220V countries
AD6 - for 110V countries
AD6 - for 110V countries
Resistance
Infinite levels of air resistance
Infinite levels of air resistance
Drive System
Single-stage belt drive / High-strength fan
Single-stage belt drive / High-strength fan
Heart Rate Monitor
Telemetric / Works with any Polar® compatible 4.5kHz - 5.5kHz chest strap transmitter
Telemetric / Works with any Polar® compatible 4.5kHz - 5.5kHz chest strap transmitter
Display
Multi-display, high resolution LCD
Oversized, high contrast LCD
Display Readouts
Time / Distance / Calories / RPM / Watts / Pulse / Speed
RevMeter™ / Time / Distance / RPM / Calories / Power / Pulse
Seat
Fore and aft adjustments
Extra-padded, oversized seat
Water Bottle Holder
Yes
Yes
Weight
51.3 kg (113 lbs)
52.2 kg (115 lbs)
Maximum User Weight
160 kg (350 lbs)
136 kg (300 lbs)
Power Source
2 D batteries, AC adapter ready
2 AA batteries, not included