Sujet : Re: Electric Assist Tandem
De : funkmasterxx (at) *nospam* hotmail.com (zen cycle)
Groupes : rec.bicycles.techDate : 02. May 2024, 11:33:36
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v0vmlg$2o26e$3@dont-email.me>
References : 1 2
User-Agent : Mozilla Thunderbird
On 4/30/2024 8:56 PM, AMuzi wrote:
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.
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pH in Aptos
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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.
If we're talking about electric assist bicycles where it can still be propelled with legs in the event of a motor failure, yes. However some redundancy on vehicles without a 'back-up' is indeed practical.
Turbine locomotives have motors on each drive wheel for exactly that purpose. If one motor fails, 7 more are generally enough to still do the job. If the turbine goes, they're still fucked though.