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anyone seen this? human electric trike thesis?
Submitted by Deleted Accounts on April 25, 2007 - 12:38am.
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just saw this, so I'm posting it before really even reading the site.. looks interesting enough from what I read on hackaday.com..
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Bad trike design!
I have given ridden about 140 various recumbent tadpole trikes and have given advice to designers and manufacturers. ( See various tadpole trikes I ride around London)
Do NOT build based on that design! YIKES!
And downloading those pages on dialup was painful!
Over-engineered, high centre
Over-engineered, high centre of gravity, heavy as a boulder and a motor to boot! It's as bad as the golf-cart "bent" some guy was raving about on Bike Forums a couple of years ago. Why can't people be content to allow human-powered vehicles to be just that: human powered!
C.
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Surely there is a slice of
Surely there is a slice of laziness in all of us that makes an electric power assist bike appealiing. Plus riding a recumbent uphill tends to be a slow and frustrating ordeal.
Doesn't this thing look a bit high tech and fun? :)
I can see what you mean by high centre of gravity in this pic. But it still seems low enough.
this is a muck bulkier model that is apparently about to be raced...
I love riding my bike but the appeal of having power assistance for those huge hills that London has (cough) is ever present.
Speaking of which... Charles are you still looking to sell your Bianci?
Jeff
I don't doubt it! Still, I
I don't doubt it! Still, I have ridden a heavy bent and had no difficulty with hills. I rode it up Windemere frequently without issue and I am 57! It is all in the gearing. Provide a low enough gear and the hills go away. Well, it will be slower on the hills, but they can still be managed. Anyway, there are no real hills 'round here. I used to live (and cycle) in hamilton. There you have hills!
My sense is that this bike is mainly a project for school. if there was ever a market for it is another thing entirely. I was impressed by the machining on the components, but I thought the whole thing was a tad complicated. The over-engineering issue would lead to a higher expectation of a breakdown coupled with obscure and hard to (or impossible to) find replacement parts.
The center of gravity being as high as it is will make the bike more prone to tipping when turning. The weight would have to be a concern as, I would expect, the bike would be pedaled most of the time, the motor being an "assist." I don't know what sort of batteries he is using, but if they are lead-acid, they will be very heavy. Gel-cels would be lighter, but still heavy. I am not certain if gel-cels have sufficient capaciity to be of use in this application.
I have no experience riding trikes, but any I have seen have been lower (less air resistance lower to the ground) and much less complex. Even so, the cost can exceed $3000.00 for a decent trike. I dispair to think of what this one would cost if it actually were to come to market.
Sorry, I have sold the Bianchi.
Cheers
Charles
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ART MATTERS!!!
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constructive..
you are one of the only people I've met that has been using a recumbant for a long time.. what flaws do you see in the design? you implied it was pretty dangerous/scary?
once I get a shop in the near or distant future I'd be interested in contructing human powered vehicles like this.. what sort of things would you suggest? any links to other designs?
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