U.S PATENT D979458

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Error 21H

ERROR 21H

The distance between the speed sensor on the bike frame and the magnet on the wheel  should be within 1-2mm.  When the sensor gets moved, or misaligned, the control screen will show error 21H.  Users must realign the magnet to the sensor, to where the sensor flashes red every time the magnet passes it. Check out video below to see proper alignment.

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OTHER ERRORS

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