Help Wanted: Prototyping a cheap ebike for the people

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Spigzy
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by Spigzy » Thu Apr 23, 2020 8:40 am

As an old Australian friend of mine once said .. "That's not a bike .... now THAT's a bike..."

Image

[It has a digital speedometer, so I think it qualifies as an eBike] :hattip:
Meum est propositum in taberna mori,
ut sint Guinness proxima morientis ori.
tunc cantabunt letius angelorum chori:
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by fazur » Thu Apr 23, 2020 9:24 am

ebike not a good idea

first requirement is cheap stable electricity cambodia ot mien
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by beaker » Thu Apr 23, 2020 12:50 pm

fazur wrote:
Thu Apr 23, 2020 9:24 am
ebike not a good idea

first requirement is cheap stable electricity cambodia ot mien
still much cheaper than buying gasoline , oil changes, & tuneups
just gasoline cost:
moto @ 50 km/$1 liter = 80 Riel/km
ebike = @200w/km = 12 Riel/km
"i'm the one who has to die, when it's time for me to die, so let me live my life the way i want to"
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by beaker » Thu Apr 23, 2020 1:00 pm

Spigzy wrote:
Thu Apr 23, 2020 8:40 am
As an old Australian friend of mine once said .. "That's not a bike .... now THAT's a bike..."

Image

[It has a digital speedometer, so I think it qualifies as an eBike] :hattip:
Old harleys are slow and will leak oil where ever they go

The new eHarleys do 0-60 in under 4 sec and no oil leaks

Image
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by fazur » Thu Apr 23, 2020 1:31 pm

beaker wrote:
Tue Apr 21, 2020 11:58 am
I was just reading about an ebike with a 380 kilometers range before it needs charging

(here is a video)
Beautiful...a mere $4K plus

[[/img]
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by fazur » Thu Apr 23, 2020 1:50 pm

i be in

je suis one very lazy fucker and lazy fuckers are good inventors

i have very good skills wrt no thats not going to work
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by Spigzy » Thu Apr 23, 2020 5:12 pm

beaker wrote:
Thu Apr 23, 2020 1:00 pm
Old harleys are slow and will leak oil where ever they go

The new eHarleys do 0-60 in under 4 sec and no oil leaks
You're absolutely right, but:
1. A Harley is to be looked at, not raced by Valentino Rossi.
2. The Livewire looks like any other sport bike.

Give me good looks & oil any day. // Checks we're still on the bike topic! :whip: //
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ut sint Guinness proxima morientis ori.
tunc cantabunt letius angelorum chori:
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by monomial » Thu Apr 23, 2020 7:33 pm

Duncan wrote:
Fri Mar 20, 2020 10:36 am
I'm looking forward to the day when cyclo's have '' electro assisted '' peddle power, with a solar panel and battery. It must be bloody hard for some of those old village guys to get that extra boost of speed that is needed sometimes, especially when there is a big fat mama with all her groceries riding in it.
Except in exceptional circumstances, such as when you have a very hard, non deformable wheel and very flat rolling surface, such as you might find with a steel wheel on a train track, the weight of a typical solar panel actually creates more rolling drag than the energy it can produce. So the idea of using cheap, polycrystalline cells to do this on deformable rubber wheels on asphalt is a net loss. Don't even think about it on dirt.

There may be some very exotic and expensive monocrystalline cells that could make this viable, but you are looking at serious $$$. There are also some new organic polymer cells that might have a chance, but they are still in the lab and likely a decade away from commercialization. A lightweight, high density battery and fixed location rapid charging stations is the only practical idea at the moment.
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by John Bingham » Thu Apr 23, 2020 8:29 pm

They need to put some kind of noise into those things, they are dangerous because they go so fast silently. If there's anything worse than some idiot driving fast on a moto with no lights it's an idiot on an e-scooter roving around trying to kill pedestrians etc.
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Re: Help Wanted: Prototyping a cheap ebike for the people

Post by monomial » Thu Apr 23, 2020 10:35 pm

I was watching them offload pigs from a truck to the slaughterhouse the other day. They just had a piece of PVC pipe with household electrical wire running through it. They plugged one end into the wall and then starting poking the pigs. Boy did those pigs move off that truck. Straight to their doom.

Makes you think though. I think that the Khmer version of an "e-bike" is just a tandem bike with an electric cattle prod so you could poke the driver to go faster....
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