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From: AMuzi <am@yellowjersey.org>
Newsgroups: rec.bicycles.tech
Subject: Re: Electric Assist Tandem
Date: Tue, 30 Apr 2024 19:56:17 -0500
Organization: Yellow Jersey, Ltd.
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On 4/30/2024 7:21 PM, pH wrote:
> I was driving along on my way home and noticed a a Jobst-yellow tandem of
> some sort.
> 
> I did a double take when I saw a Bosch-like motor bulb on the stoker's pedal
> set!  I did not realize that there were electric assist tandems.
> 
> By the time that realization set in it was too late to look and see if the
> Captain's bottom bracket was motorized, too.
> 
> I would not think that that would be the case, but you never know.
> 
> pH in Aptos
> 
> I think Yamaha and Shimno also make bottom bracket bulbs so no idea what it
> was.
> 
> I've seen several of the Ba-Feng (sp?) kit's of late as well.
> 
> I'll try to do an un-scientific bike survey of what goes by sometime this
> next month.
> 
> pH in Aptos

Yes battery assist tandems are a thing. As you note, several 
motor formats just as bicycles generally.

https://2022.santana-tandem.com/en/tandem/e-tandem

There's no point in more than one motor in a drive train. Or 
on both wheels for that matter.
-- 
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971