LifeFitness LifeCycle GX User Manual (English)

Questions and Answers:

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Andre HillAug 18, 2025
What to do if the LifeFitness LifeCycle GX Exercise Bike console does not turn on when pedaling?
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  Beverly WilliamsAug 18, 2025
  If the console isn't turning on when you pedal, it could be due to the following reasons: * The batteries may be dead. Try replacing the batteries with two standard 1.5V alkaline D-Cell batteries. * There might be a bad connection between the console and the gear module board, the magnet in the flywheel may have fallen out (replace the magnet), or there could be a faulty circuit board in the bike base. The console will only turn on after an RPM is detected.
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eholmesAug 20, 2025
How to fix very low resistance on LifeFitness Exercise Bike?
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  Amanda HarrisAug 20, 2025
  If you're experiencing very low or no resistance, even when adjusting the resistance lever, it could be due to: * An improper cable path around the "Cam-Pulley". Ensure the cable wraps around the Cam-Pulley properly and is fully seated in the Cam-Pulley groove. * The mechanical cable may have slipped out of the clamp. You should mechanically calibrate the magnetic brake assembly and fully tighten the cable clamp screw.
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sbradyAug 22, 2025
Why is no heart rate showing on my LifeFitness LifeCycle GX Exercise Bike console with chest strap?
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  Timothy KirkAug 23, 2025
  If you are not seeing a heart rate on the console while wearing a chest strap, the issue could be due to several reasons: * The chest strap sensors may not be making good contact with your body. Try adjusting the strap and moistening the sensors. * You might be out of monitoring range. Move within 3 feet (1 meter) of the heart rate board. Note that RF interference or a low battery can reduce the signal distance. * The battery in the chest strap may need to be replaced. Consult the chest strap’s instruction manual for directions.
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Thomas SawyerAug 26, 2025
Why does my LifeFitness Exercise Bike show a heart rate without a chest strap?
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  Amanda WhiteAug 26, 2025
  If you're seeing a heart rate displayed even without wearing a chest strap, it's likely due to: * RF interference from personal electronic devices or other equipment nearby. Try removing the source of noise or repositioning the exercise equipment. * Another nearby user is wearing a chest strap. Try moving the other user further away from your bike.
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martinezscottAug 27, 2025
Why does the LifeFitness Exercise Bike console turn off after turning on during assembly?
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  terry96Aug 28, 2025
  If the console turns on when attached but then turns off, it may be due to: * The bike is not being pedaled. The console needs to detect an RPM from the bike, or it will turn off after 5 minutes. * The console is not receiving a signal from the reed switch board. This could indicate a bad connection between the console and gear module board, a missing magnet in the flywheel (replace the magnet), or a faulty circuit board in the bike base.
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johnsonanthonyAug 29, 2025
What causes belt slipping on LifeFitness Exercise Bike at high resistance?
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  Dave StephensonAug 30, 2025
  If the belt is slipping at medium to high resistance, it's likely that the drive belt is improperly installed. Re-install the drive belt so that the lower half of the drive belt sits on top of the idler.
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davidsoncarlaSep 1, 2025
How to stop knocking noise when pedaling on LifeFitness Exercise Bike?
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  Rebecca HerreraSep 1, 2025
  A knocking noise when pedaling usually indicates loose crank bolts. Re-tighten the crank bolts using Blue 242 Loctite to 48 ft-lbs (65 Nm).
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Paige BellSep 3, 2025
Why is there black dust near the back stabilizer of my LifeFitness LifeCycle GX Exercise Bike?
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  Stephen NicholsSep 3, 2025
  Black dust near the back stabilizer is usually caused by the drive belt rubbing against the magnetic brake assembly due to improper installation. Re-install the drive belt so that the lower half of the drive belt sits on top of the idler.
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Matthew SnyderSep 6, 2025
What to do if the seat is loose on LifeFitness LifeCycle GX?
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  Christopher Webb MDSep 6, 2025
  If the seat is loose, it's likely that the nuts used to assemble the seat to the seat stem were not properly tightened. Tighten the seat nuts, ensuring that the nut on each side of the seat clamp has been adjusted approximately the same amount.
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Kristin WatkinsSep 8, 2025
Why does the resistance lever move while riding my LifeFitness Exercise Bike?
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  Nicholas GeorgeSep 8, 2025
  If the resistance lever doesn’t stay in place and gradually moves up, the screws that clamp the “friction washer” inside of the resistance lever are likely loose. Tighten the male-female screws that hold the resistance level housing together to 5Nm (3.7ft-lbs.). Add 242 Loctite if needed.