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Blitz bike: Watts/speed/RPM not workingUpdated 10 months ago

The speed sensor that sticks into the cage near the center of the fan can sometimes get jostled during shipping, throwing off its alignment with the fan's magnet. Sensors are rarely ever defective right out of the box, so a simple realigning of the two should restore the tracking of wattage, speed and RPM. 

Before starting, ensure that you have the following parts intact on your bike:

  • fan magnet

  • speed sensor

  • The following connected with each other: a wire in the bike frame, a wire in the monitor's post, and a wire from the monitor itself.

Here's how to fix it:

  1. Check to make sure your monitor has functioning batteries 

  2. Confirm that your monitor can turn on without pedaling, by hitting "Start"

  3. Grab a Phillips screwdriver and slightly loosen the screw holding the speed sensor in place

  4. Remove the outer plastic dust guard near the center of the fan, relevel the sensor

  5. Lightly turn the pedal, so that the sensor and fan magnet are in line with each other

  6. Gently adjust the speed sensor's angle to make it point directly to the center of the magnet

  7. Connect all wires

  8. Turn the pedals while watching the monitor for the recording of key metrics

  9. If successful, carefully tighten down the screw holding the sensor in place

  10. If unsuccessful, continue adjusting sensor slightly up (or down) and turning the pedals — watching for when the monitor tracks key metrics again

  11. Optional: re-attach the plastic dust guard

In extremely rare cases, the sensor's glue might need to be gently rewarmed using a hairdryer and the sensor pushed in further into the cage to be within 1/2" of the fan magnet

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