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Torque sensor on the Bearing of Pedal Cranks
The torque sensor that determines the pedaling force may lose its electronic calibr ation
and that leads to the malfunctioning of assisted pedaling. Therefore, keep magnetic and
metal objects, such as a hammer, away from the crank bearing.
The Serial Number of New Darfon Electronics Corp. Bike is in the Warranty Card
The serial number of your new Darfon Electronics Corp. bike and its frame number
validate your after- sale (warranty) service. Therefore, check that the serial numbers of
the bike and the frame are intact when you are going to buy a bike. Do not buy a bike
with a sign that these numbers are tampered with!
• The new bike serial number is found in the warranty card.
• The frame serial number is found on the base of bottom bracket shell, the rear
drop-out of the frame, or down tube.
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