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jimtamarack
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jimtamarack jessie-mmorgan's article
Apr 5, 2024 at 19:09
Apr 5, 2024
SRAM Patent Shows Compact Motor x Battery Unit
Optibike built and sold this design back in 2014. IT was called the SIMBB (super integrated motorized bottom bracket) It featured a 750 watt motor and 760 watt hour battery. Check it out here https://optibike.com/optibike-simbb-29c/