Electric Bikes - Motor drag: How easy to spin?

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View Full Version : Motor drag: How easy to spin?


Snowsurfer
08-08-08, 12:06 AM
How easy is it to spin your hub motor wheel? How many times does it spin on its own without battery power, when you give it a good spin with your hand? Is 2 spins bad? A lot of motor drag, or are the bolts just on too tight?


adamtki
08-08-08, 01:49 AM
It's the cogging effect you see and is inherent in permanent magnet based motors. I had the same concern too with my hub motors, but discovered that it's normal.

kbdog
08-08-08, 07:23 AM
I occasionally turn my Bionx PL350 motor off and don't really notice much drag if any. Perhaps I'm getting fitter?