Old 12-29-18, 07:08 PM
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carleton
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Originally Posted by Morelock View Post
https://vervecycling.com/dig-deeper/

This seems to imply that they do use magnet/reed switch, although in the past I am pretty sure I had heard it used an accelerometer. Not sure...
You are correct. There is a magnet:
InfoCrank uses a reed switch, triggered by a fixed magnet mounted on the bike frame.
All Reed Switches are activated by magnets, including SRMs.
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