Bosch motor whirs briefly when changing gear

Fitcaz

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Joined
Jan 30, 2023
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2
Hi,
any advice on Bosch gen 2 active line recent problem. When I change down gear the motor whirs quickly for a second or so then resumes normal operation. This has just started happening and otherwise the bike is fine. Is it a failed sensor and is it easy fix?
thanks
 
Bummer. The Active Line on my Cannondale Neo began making crunching sounds. New motor required to the tune of $900+ including installation.
 
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