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 ModelG572rG572uC580rC580uC572rC572uC532rC532uC521rC521uC510
 Dimensions (LxWxH)72"L x 26"W x 53"H45"L x 24"W x 55"H71" x 25" x 50"42" x 24" x 55"71.75" x 25.875" x 52.625"45" x 23.5" x 55.25"66" x 26" x 51"40" x 22" x 56"66" x 26" x 51"40" x 22" x 56"41" x 26' x 48"
 Unit Weight240 lbs161 lbs220 lbs.159 lbs.240 lbs.161 lbs.156 lbs.121 lbs.156 lbs.121 lbs.117 lbs
 Resistance SourceGeneratorGeneratorElectro-magneticElectro-magneticElectro-magneticElectro-magneticElectro-magneticElectro-magneticElectro-magneticElectro-magnetic44lbs Flywheel
 Power SourceSelf-generatingSelf-generating110v110vSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backup Self-generating with 2 minute battery backupUser powered
 Step ThroughYesN/AYesN/AYesN/AYesN/AYesN/AN/A
 Low-Profile ShroudN/AYesN/AYesN/AYesN/AYesN/AYesN/A
 Adjustable Seat BackYesN/AYesN/AYesN/AYesN/AYesN/AN/A
 Fore and Aft Seat AdjustYesYesYesYesYesYesYesYesYesYesYes
 Resistance Levels20202020202020202020unlimited
 Integrated FanYesYesYesYesYesYesNoNoNoNoNo
 ProgramsManual, Random, Plateau, Fat Burn, Interval (1:1, 1:2, 2:2), Quick Start, Custom HR, Cardio & Weight loss HR, Fitness TestManual, Random, Plateau, Interval (1:1, 1:2, 2:2), Fat Burn, Quick Start, Custom HR, Cardio & Weight Loss HR, Fitness TestManual/Track, Random, Plateau, Interval, Fat Burn, Weight Loss, Cardio, Custom HR, Fitness Test, Quick StartManual/Track, Random, Plateau, Interval, Fat Burn, Weight Loss, Cardio, Custom HR, Fitness Test, Quick StartManual/Track, Random, Fit Test, Cardio/Wt Loss, Interval (1:1, 1:2, 2:2), Plateau, Fat Burn, Custom HR, Quick StartManual/Track, Random, Fit Test, Cardio/Wt Loss, Interval (1:1, 1:2, 2:2), Plateau, Fat Burn, Custom HR, Quick StartHill (x3), Interval (x2), Manual/Track, Random, Weight Loss HRC, Cardio HRC, ZoneTrainer™, Plateau, Quick Start, 4 User IDsHill (x3), Interval (x2), Manual/Track, Random, Weight Loss HRC, Cardio HRC, ZoneTrainer™, Plateau, Quick Start, 4 User IDs Hill (x3), Interval (x2), Manual/Track, Random, Weight Loss HRC, Cardio HRC, ZoneTrainer™, Quick Start, 4 User IDsHill (x3), Interval (x2), Manual/Track, Random, Weight Loss HRC, Cardio HRC, ZoneTrainer™, Quick Start, 4 User IDsNo
 Touch-N-Go ProgramsYesYesNoNoYesYesYesYesYesYesNo
 Data ReadoutsCalories, Distance, Time, Speed, RPM, Calories/Hour, METS, WATTS, Heart rate (Actual, Weight loss, Cardio conditioning), Workout Level, Green EnergyCalories, Distance, Time, Speed, Calories/Hour, METS, WATTS, Heart Rate (Actual, Weight Loss & Cardio Conditioning), RPM, Workout Level, Green EnergyCalories, Distance, Time, RPM, Cal/Hr, METs, Watts, Speed, Percentage of goal completed, Workout level, Actual heart rate, Target heart rateCalories, Distance, Time, RPM, Cal/Hr, METs, Watts, Speed, Percentage of goal completed, Workout level, Actual heart rate, Target heart rateCalories, Distance, Time, RPM, Calories per hour, METs, Watts, Speed, Percentage of Goal Completed, Workout Level, Actual Heart Rate, Weight Loss Target Heart Rate, Cardio Conditioning Target Heart RateCalories, Distance, Time, RPM, Calories per hour, METs, Watts, Speed, Percentage of Goal Completed, Workout Level, Actual Heart Rate, Weight Loss Target Heart Rate, Cardio Conditioning Target Heart RateSpeed, Watts, Calories, Calories/hr, RPM, Distance, Time, Resistance Level, Heart Rate, Target Heart RateSpeed, Watts, Calories, Calories/hr, RPM, Distance, Time, Resistance Level, Heart Rate, Target Heart RateSpeed, Watts, Calories, Calories/hr, RPM, Distance, Time, Resistance Level, Heart Rate, Target Heart RateSpeed, Watts, Calories, Calories/hr, RPM, Distance, Time, Resistance Level, Heart Rate, Target Heart RateNo
 DisplayDot matrix and LEDsDot matrix & LEDs10.2" Entertainment-ready LCD10.2" Entertainment-ready LCDDot matrix and LEDsdot matrix and LEDsDot matrix and LEDsDot matrix and LEDsDot matrix and LEDsDot matrix and LEDsNo
 ActivZone™YesYesNoNoYesYesYesYesYesYesNo
 CardioAdvisor™YesYesYesYesYesYesYesYesYesYesNo
 Entertainment Bracket CompatibleYes, CESYes, CESYes - TV screen is built-inYes - TV screen is built-inYes, SA ENT-153691060 (now 153691060)Yes, SA ENT-153691060 (now 153391140)Yes, SA ENT-182091170Yes, SA ENT-154091120Yes, SA ENT-182091170Yes, SA ENT-154091120No
 Max User Weight500 lbs500 lbs500 lbs.500 lbs.500 lbs.500 lbs.450 lbs.450 lbs.400 lbs.400 lbs.350 lbs
 Contact Heart RateYesYesYesYesYesYesYesYesNoNoNo
 Telemetry Heart RateYesYesYesYesYesYesYesYesYesYesNo
 Commercial Parts WarrantyLifetime frame, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years parts, 1-yr LCD screenLifetime frame, 5 years parts, 1-yr LCD screenLifetime frame, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years partsFrame 5 years, Parts 2 years, Wear items 1 year
 Commercial Labor Warranty1 year1 year1 year 1 year 1 year1 year1 year1 year1 year1 year1 year
 CSAFEYesYesYesYesYesYesNoNoNoNoNo
 USBYesYesYesYesYesYesNoNoNoNoNo
 CertificationsUL1647, C22.2 No. 68, FCCUL1647, C22.2 No. 68, FCCCE EMC (LVD EMF APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92, FCCCE EMC (LVD EMF APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92, FCCxzAnticipated: CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92Anticipated: CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92 Anticipated: CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92Anticipated: CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92 
 Power RequirementsFor feedback to the grid, 208 - 220 VACFor feedback to the grid, 208-220VACPlug: UL NEMA 5-15; Fuse: 1A/250V (6*30mm Slow); Power supply (N. Amer.): 120VAC, 60 Hz, 1A, 120WPlug: UL NEMA 5-15; Fuse: 1A/250V (6*30mm Slow); Power supply (N. Amer.): 120VAC, 60 Hz, 1A, 120WSELF-POWERED; Fuse: 2A/250V (5*20mm FAST)SELF-POWERED; Fuse: 2A/250V (5*20mm FAST)SELF-POWEREDSELF-POWEREDSELF-POWEREDSELF-POWEREDNone