ModelC531rC531uC520rC520uC50rC50u
MSRP$2,399$2,199$1,999$1,599$1,499$1,099
Dimensions (LxWxH)66" x 26" x 51"40" x 22" x 56"66" x 26" x 51"40" x 22" x 56"66" x 26" x 51"40" x 22" x 56"
Unit Weight156 lbs.121 lbs.156 lbs.121 lbs.134 lbs.97 lbs.
Resistance SourceElectro-magneticElectro-magneticElectro-magneticElectro-magneticPermanent magnetPermanent magnet
Power SourceSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backupSelf-generating with 2 minute battery backup110v110v
Step ThroughYesN/AYesN/AYesN/A
Low-Profile ShroudN/AYesN/AYesN/AYes
Adjustable Seat BackYesN/AYesN/ANoN/A
Fore and Aft Seat AdjustYesYesYesYesYesNo fore/aft; yes up/down
Resistance Levels202020201414
One-Touch Pedal StrapYesYesNoNoNoNo
ProgramsHill (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 IDsHill (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 IDsHill (x3), Random, Manual/Track, Interval (x2), Quick startHill (x3), Random, Manual/Track, Interval (x2), Quick start
Touch-N-Go ProgramsYesYesYesYesYesYes
Data ReadoutsSpeed, 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 RateCalories, RPM, Time, Resistance level, Heart rate, 4 user IDsCalories, RPM, Time, Resistance level, Heart rate, 4 user IDs
DisplayTri-color dot matrix and LEDsTri-color dot matrix and LEDsTri-color dot matrix and LEDsTri-color dot matrix and LEDsBlue back-lit LCDBlue back-lit LCD
ActivZone™YesYesYesYesNoNo
CardioAdvisor™YesYesYesYesNoNo
Entertainment Bracket CompatibleYes, SA ENT-182091170Yes, SA ENT-154091120Yes, SA ENT-182091170Yes, SA ENT-154091120NoNo
Max User Weight450 lbs.450 lbs.400 lbs.400 lbs.350 lbs.350 lbs.
Contact Heart RateYesYesNoNoNoNo
Telemetry Heart RateYesYesYesYesYesYes
Residential Parts WarrantyLifetime frame, lifetime mechanical, 7 years electronicsLifetime frame, lifetime mechanical, 7 years electronicsLifetime frame, 10 years parts, 5 years electronicsLifetime frame, 10 years parts, 5 years electronicsLifetime frame, 10 years parts, 5 years electronicsLifetime frame, 5 years parts, 3 years electronics
Residential Labor Warranty1 year 1 year 1 year 1 year 1 year 1 year
Suggested Commercial Usage6 hours max per day; no-fee facility6 hours max per day4 hours max per day; no-fee facility4 hours max per day; no-fee facilityNoneNone
Commercial Parts Warranty3 years 3 years 2 years2 yearsNoneNone
Commercial Labor Warranty1 year1 year1 year1 yearNoneNone
CertificationsCE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92CE EMC EMF (LVD APPLIED FOR), EMI (AUS), UL1647 CS2.2 68-92CE EMC, UL1647 CS2.2 68-92CE EMC, UL1647 CS2.2 68-92
Power RequirementsSELF-POWEREDSELF-POWEREDSELF-POWEREDSELF-POWEREDPlug: UL NEMA 5-15; Fuse: 0.5A/250V (6*30mm Slow); Power supply (N. Amer.): 120VAC, 60 Hz, 0.5A, 60WPlug: UL NEMA 5-15; Fuse: 0.5A/250V (6*30mm Slow); Power supply (N. Amer.): 120VAC, 60 Hz, 0.5A, 60W