Bafang speed sensor - Replacement for BBS01B / BBS02B / BBS03B / BBSHD motors
This speed sensor is designed to replace the original one on Bafang BBS series pedal motors (BBS01B, BBS02B, BBS03B, BBSHD). It plays an essential role in the smooth operation of the electric assistance system, transmitting the rear wheel rotation speed to the motor controller.
Main features :
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Compatibility: BBS01B, BBS02B, BBS03B, BBSHD (mid-drive)
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3-pin connector (usually waterproof)
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Cable length: often ~80 cm (check with exact model)
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Easy installation: attaches to the rear base of the frame, with the magnet passing through a wheel spoke
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Supplied with a magnet (to be screwed onto a shelf)
Usefulness:
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Required to activate pedal-assist function (PAS)
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Prevents "Code 21" error on Bafang screens
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Helps regulate motor power according to actual speed
Remarks :
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Ideal in the event of a faulty sensor, damaged cable or over-stretched cable extension.
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Installs in minutes without special tools.
