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Title: Not a pic, but outstanding Post by: Clive on March 25, 2009, 09:35:10 PM Just thought I'd share this!! takes a while to load, but worth it!
Clive http://www.revmavault.com/video/hubless%20web.wmv Title: Re: Not a pic, but outstanding Post by: Mr_G on March 25, 2009, 10:05:47 PM I love that bike, its genious! love the way that the tyre rotates around the hubs, looks like a real mean machine. Not sure how they deliver the power to the rear wheel though? can any one enlighten me?
Title: Re: Not a pic, but outstanding Post by: Clive on March 25, 2009, 10:10:31 PM The only thing I can think of is a 'dynamo' style drive!
Clive Title: Re: Not a pic, but outstanding Post by: tbone on March 25, 2009, 10:27:11 PM I`d opt for a ring gear around the rear rim diven by a smaller cog, buried under that bit of bodywork
Title: Re: Not a pic, but outstanding Post by: tony b on March 25, 2009, 11:38:08 PM SEEN THIS BEFORE,ITS DONE USING SOMETHING FROM A HELICOPTER ROTOR BLADE,oops left caps lock on again,dope,
Title: Re: Not a pic, but outstanding Post by: Clive on March 25, 2009, 11:42:55 PM A part from a rotor blade? Can't think how that would work, and I spend my days trusting those things to keep me in the air!!!
Clive Title: Re: Not a pic, but outstanding Post by: manfred on March 25, 2009, 11:57:23 PM I would expect it to use something along the lines of a splined shaft driving teeth on the inside of the hub.
But how fast would the shaft have to spin to drive the wheel at a decent speed? Title: Re: Not a pic, but outstanding Post by: SUMO on March 27, 2009, 10:30:24 AM i seem to remember billy lane did one with a helicopter bit - think it was an insanely expensive bearing he used or something but that was a perimeter chain equally nutty but think different way of doing it
(http://i71.photobucket.com/albums/i153/banjodave/10498568_l.jpg) im thinking along these lines [yea i know its a bicycle but in principle...] (http://i71.photobucket.com/albums/i153/banjodave/nulla-bike-concept1.jpg) there is the osmos system too http://www.osmos-wheel.com/pages/application_motos.asp Title: Re: Not a pic, but outstanding Post by: Manky Monkey on March 27, 2009, 11:09:26 AM That bicycle's beautiful.
Title: Re: Not a pic, but outstanding Post by: Simple Simon on March 27, 2009, 01:21:14 PM I seem to remember one a couple of years ago that was driven by a smaller wheel hidden behind the rear tyre pressing into the rear to provide drive :-\
Title: Re: Not a pic, but outstanding Post by: SUMO on March 27, 2009, 01:46:29 PM I seem to remember one a couple of years ago that was driven by a smaller wheel hidden behind the rear tyre pressing into the rear to provide drive :-\ yep - saw that, must be about 5 years ago now - s**tE SOLUTION in my opinion Title: Re: Not a pic, but outstanding Post by: Manky Monkey on March 27, 2009, 01:49:14 PM There's only so many ways of being different & standing out from the crowd before it becomes unpractical or completely unrideable. in my experience the "normal" way of doing things is usually the norm for a reason.
Title: Re: Not a pic, but outstanding Post by: SUMO on March 27, 2009, 01:50:02 PM There's only so many ways of being different & standing out from the crowd before it becomes unpractical or completely unrideable. in my experience the "normal" way of doing things is usually the norm for a reason. so why do you have a trike then? :D Title: Re: Not a pic, but outstanding Post by: Manky Monkey on March 27, 2009, 01:59:49 PM ;D
Yeah, I know, but mine's not really pushing the boundaries of design is it. I meant that in the custom world there are certain styles & trends & methods of doing things that are accepted as the norm. Usually because they're tried & tested & proved to work. If you're trying to be different & push the envelope that bit further, you soon find out just why people have stuck to the tried & tested ways. It's those guys that are pig-headed enough to keep pushing on & find new ways of overcoming the problems that lead the way for others to follow though. Without them, we'd all be riding/driving identikit vehicles. |