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Anonymous

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MCN  says:

Poll: Can you see yourself buying an electric bike in the next five years?

Oil is running out and the burning of fossil fuels is destroying the earth. It seems inevitable that the internal combustion engine will one day be consigned to museums, but can you see yourself on an electric bike?   pollcomment

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  • Posted 3 years ago (03 April 2012 12:12)

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X2Glider

Joined:

May 10

Posts: 427

X2Glider says:

NO

If I can't take a 6000 mile bike ride for a 2 week vacation, forget about it.  I'd never get anywhere, having to recharge everywhere for a couple hours at a time.  Plus, at highway speed, pushing wind, electric bikes drain very, very quickly.  Those mileage figures quoted by electric vehicle manufacturers follow a very loose testing standard...part highway at 15 mph under highway speed limits and city driving at less that 30 mph.  Far from a worst case mileage rating.  They may say 100 miles per charge, but 70-75 mph on the interstate may only get you 30 miles in reality.

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joeslow

Joined:

Mar 07

Posts: 1464

joeslow says:

Brammo bikes

Thanks to brammofan for reminding me of these bikes, I'm glad people like them

They make a good commuter with the enertia, but it has only a very short range at the moment of 42miles "average" with a recharge time of 4hours. The Enertia costs just short of 8,000 USD which equates to about £5000 @ 1 USD = 0.628 GBP.

The new empulse has various battery ranges 60 /80 /100 miles but the recharge time is 6 / 8 or 10 hours depending on the battery choice, but it does have a top speed of  over 100 mph, which is pretty good but prices start at just under 10,000 USD up to 14,000 USD.

I don't know if anyone imports them into the UK but I don't think so.

www.brammo.com/home/

In perspective compared to an Enertia, a used very low milage Honda CG125 will cost about £1,500 and return almost 100mpg uk and you can travel 280 miles on a tank. The £3,500 left over would give you over 55,000 miles of biking.

[This Reply has been modified by the Author]

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James600zx

Joined:

Sep 07

Posts: 2736

James600zx says:

No.

I don't think electric vehicles have enough development potential to be viable. Their range is inadequate, they're on the heavy side, charging takes too long and, as has been said, their green credentials are dubious.

I think in the future we'll be running bio-fuelled internal combustion engines. Already scientists are producing significant amounts of ethanol from microbes.

One thing we often forget is that the complex molecules in crude oil are used by chemists to synthesise all manner of useful products, from plastics to medicines. As oil becomes scarcer it seems daft to burn it.

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bbstrikesagain

Joined:

Nov 08

Posts: 878

10

maybe

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SatNavSteve

Joined:

Sep 10

Posts: 1259

SatNavSteve says:

Another thing no-one has mentioned is battery life, as in the batteries are knackered after a couple of years use and then you find the cost of replacement is half the price of the bike. Add that to the running costs!

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KimLondon

Joined:

Jan 08

Posts: 876

KimLondon says:

I'd be happy to have one

I keep my bike in a garage overnight where there is power socket, I live in London so I don't need a range of more than 60 miles. However, the cost does put me off as it's just not viable. If someone came up with a good lease hire deal then I'd be well into that.

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AFKAN

Joined:

Apr 07

Posts: 153

AFKAN says:

nice idea...

...in theory but the actual technology isn't good enough yet to even think about making it a viable proposition.  If we see it properly in 10 years I'll be amazed.

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stevecase

Joined:

Aug 02

Posts: 129

stevecase says:

There are 2 issues with electric transport which are cost and range. As is shown by the cars the cost of the lithium batteries and the expensive rare earth DC motors makes these too expensive to compete with normal cars. Why would electric bikes be any different?

The range issue needs to be resolved which the lithium batteries are supposed to help by higher energy density, but to me the donkey motor providing power is still the best solution so far with a small engine running at peak torque producing electric to power DC motors which have a torque value at low rpm equivalent to tying yourself to an elephants tail and then prodding it up the arse with a sharp stick!

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stevecase

Joined:

Aug 02

Posts: 129

stevecase says:

Forgot to say, using a donkey motor would allow the use of capacitors for energy storage which I also believe don't have the lifetime issue SatNavSteve identified.

The issue then would be regulating the current as capacitors are quite happy to supply as fast as they can discharge and this would probably be wasted as wheel spin or crashing.

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Lil125Guy

Joined:

Oct 11

Posts: 157

Lil125Guy says:

1 Snag though

Where do you think the 'eco-tricity' comes from then?

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