Oh nothing, just riding around on my hubless bicycle.
08-15-10, 01:21 PM
#1
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Oh nothing, just riding around on my hubless bicycle.
08-15-10, 01:38 PM
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Is there a performance benefit? Seems like it would add weight and bearing-drag (due to higher bearing-velocity and contact-area).
08-15-10, 02:59 PM
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If it's a demonstration project for something that might have practical applications elsewhere that's fine. But as a bicycle, it's a big step in the wrong direction, with only the most marginal benefits, and many, many drawbacks.
The people who come up with stuff like this have absolutely no sense of the bicycle's history, that their brainchild has been done already, and that current bicycle design is actually highly evolved. The beauty of modern bicycles is how simple they are and how they achieve so much with a minimum of material, or moving parts.
Rather than designing gadgets that solve non-problems, designers should focus their efforts on identifying and addressing real problems.
The people who come up with stuff like this have absolutely no sense of the bicycle's history, that their brainchild has been done already, and that current bicycle design is actually highly evolved. The beauty of modern bicycles is how simple they are and how they achieve so much with a minimum of material, or moving parts.
Rather than designing gadgets that solve non-problems, designers should focus their efforts on identifying and addressing real problems.
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FB
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
08-15-10, 03:05 PM
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I do like the description in step 18:
"ummm yeah, that way the go-roundy s**t doesn't run over the air thingy"
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08-15-10, 03:12 PM
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As we've seen over the years carbon has been able to make inroads in FRAME design even to the point that for whatever reasons the FIM outlawed anything but the standard double triangle bike from competing in the more prestigious events. But other than velodrome and some calm conditions triathalon racing the tried and true spoked wheel is still king for a lot of very good reasons. The key one being FB's reply above that it does so much with so little. This hubless design is just an art exercise until someone can come up with a practical and equally or better perfoming design that does the job with even less material.
08-15-10, 03:17 PM
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The people who come up with stuff like this have absolutely no sense of the bicycle's history, that their brainchild has been done already
https://pds.exblog.jp/pds/1/200903%2F...F1430291%2Ejpg
On the motorcycling front, Sbarro made a few hubless motorcycles. The forks were kinda weird though.
08-15-10, 03:19 PM
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OOohhh, I remember seeing this one in the Modolo catalogue around 1988.
https://pds.exblog.jp/pds/1/200903%2F...F1430291%2Ejpg
It had hidden hydraulic brakes, very cool! On the motorcycling front, Sbarro made a few hubless motorcycles. The forks were kinda weird though.
https://pds.exblog.jp/pds/1/200903%2F...F1430291%2Ejpg
It had hidden hydraulic brakes, very cool! On the motorcycling front, Sbarro made a few hubless motorcycles. The forks were kinda weird though.
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Jeff Wills
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08-15-10, 03:20 PM
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Nice Danno. But I wonder what happens when it hits the first pothole.... 
08-15-10, 03:21 PM
#9
You gonna eat that?
This thread is so last Friday.
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08-15-10, 07:59 PM
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Heh, heh.. seems a little flimsy. Would make for an interesting FEA exercise in materials selection. Rims would have to be something with high stiffness to weight/size ratios... like beryllium. Ring-shaped hub could be MMC with CF and boron embedded in an aluminium binder. Even then, that may still be pushing it.
