Aces High Bulletin Board
General Forums => The O' Club => Topic started by: Sandman on June 29, 2005, 05:01:37 PM
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If you thought the airless car tires were cool, take a look at this...
Hubless Wheels (http://www.osmoswheel.com/?lang=en)
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I've had airless car tires plenty of times, usually when it was raining, and I hardly found them cool at all.
Neat wheels.
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Originally posted by Chairboy
I've had airless car tires plenty of times, usually when it was raining, and I hardly found them cool at all.
I meant these (http://www.michelinman.com/difference/releases/pressrelease01102005a.html). :)
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smurfy!!!! I wonder how the longevity will be on them as well as heavy usage in everyday traffic.
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Billy Lane already made a hubless wheel for a bike.
(http://www.holidaywest.com/aride.jpg)
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are those the friction drive like the one used in one of those "biker build-off's?
if so, all i see are problems with oil or some other substance getting on the wheel and messing up the friction wheel's contact.
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Pretty stupid other than from a marketing standpoint.
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Originally posted by Lizking
Pretty stupid other than from a marketing standpoint.
Every kid in the country will want a bike with those wheels... whether they are better or not.
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Hence, why it is a marketing stroke of genius, but from an engineering perspective is plain old stupid.
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Originally posted by Lizking
Hence, why it is a marketing stroke of genius, but from an engineering perspective is plain old stupid.
ya... I was agreeing with you... about the marketing aspect. The engineering... I'll say words never uttered in the forum before.... "I have no clue." ;)
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I'm no engineer, but just imagine the tolerances and forces that that wheel would require. The center-hub wheel is a pretty damn hard concept to beat, and is elegant in the technical sense.
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One mans magic is another mans engineering... once a new technology rolls over you, if you ain't part of the steamroller, yer part of the road.
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In the case of this thing, I see a lot of very expensive rim replacements, as well as a serious safety issue with non shielded rotating parts.
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I wonder how well this design would react to getting dirty. a center hub wheel has enclosed bearings, is there an equivalent here?
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Tracks, I tell you, tracks!
If it was good enough for Guderian, it's good enough for me.
- Seagoon
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Originally posted by doobs
Billy Lane already made a hubless wheel for a bike.
That's what I was thinking too. I remember that episode of the bike buildoff.
It looks really cool on the bike
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Originally posted by Seagoon
Tracks, I tell you, tracks!
If it was good enough for Guderian, it's good enough for me.
- Seagoon
Wouldn't work too well on my motorbike.
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Originally posted by Pei
Wouldn't work too well on my motorbike.
Nein! Zey verk fine!
(http://www.kettenkrad.com/Camo-ket-web.gif)
:p
- SEAGOON
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really when you get down to brass tax......arent they just reinventing the wheel?:cool:
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i can't wait to get one for my bike!!! :aok
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damnit! now they've put a tax on brass?
lazs
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Getting dirty is a good point
I have a 30 meter (thats about 30 yards for you yanks) driveway that is dirt (live on a semi rural property)
And what happens if you get a flat. Be a bit@h to change I think.
Later
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Originally posted by doobs
Billy Lane already made a hubless wheel for a bike.
(http://www.holidaywest.com/aride.jpg)
Franco Sbarro used hubless wheels already something like 5 years ago.
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Originally posted by Gunslinger
really when you get down to brass tax......arent they just reinventing the wheel?:cool:
ROFLMAO "brass tax" Bwahahhaaa.
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The tweel I cant really see much on it. First the picture dont show if there is rubber tread on it. I guess there would be for comon sense. Second how wide are they, looks real thin to me. Hate to see the results if you have to turn fast.
Then theres the problem of hitting a possum in it. If you do, does its guts get splattered in the spokes and have to be scrubbed out with a toothbrush?
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Ok, real performance question. Wouldn't this hubless wheel offer a performance penalty because of the added friction that the larger bearing-seal would have?
In a 17" hub wheel, the bearings are in the center and there might be something like a 6 inches circumference of material keeping water out and grease in around the bearings. If I understand this right, that same 17" wheel here would have around 50" of friction inducing bearing seal, and it would have to be heavier duty to deal with the higher relative contact speed with the wheel.
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Originally posted by Staga
Franco Sbarro used hubless wheels already something like 5 years ago.
Damn I'm good... it's actually Franco Sbarro's idea; hopefully better than a VW Golf with Porsche's 4,5l V-8 or flat-6 w/turbo.
Pretty neat things that guy has built.