Osymetric
806
Member
1391 days
thehitman posted 3 years ago.
The use of asymmetrical athletic gear is nothing new. Much of the equipment in the modern gym utilizes cams and other means to vary power and/or resistance. I don't see Lance Armstrong, or anyone else, using asymmetrical crankets, though. If its legal and makes him faster, Lance and the rest would all use it. The testing shown on the website is anything but convincing.
If I change, I'd go for a compact crankset --- sure would have come in handy on the hills yesterday.
thehitman
thehitman
“Always do right. This will gratify some people and astonish the rest.” Mark Twain
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255
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1307 days
Noel posted 3 years ago.
Hey,
yeah I know, almost every manufacturer of gym equipment has those a-symetrical things on their products. For optimum range of motion etc.
And yeah, Lance doesn't use em, although I saw Iban Basso from CSC use em. They're not illegal last I heard. But the Cycling world isn't overwhelmingly convinced.. so I guess the product isn't 100% fool proof. A good friend of mine is putting them on his bike, I guess I'll see what his next bike test will say next time he needs to do one at his coach' place. Guess I'll just wait and see what happens..........
Noel.
www.noelbrand.blogspot.com
It ain't much, if it ain't Dutch!!
314
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1391 days
ryan16 posted 3 years ago.
Has anyone tried this? I wonder how this would feel while peddaling if you can even notice a difference.
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287
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1443 days
Great Greyhound posted 3 years ago.
There is something similar at http://www.rotorcranksusa.com/, these have a crank arm that moves slightly. Take a look at http://www.timetrial.org/rotorcranks.htm for a review from a Time Trialer point of view. I've looked at this, but the price is pretty steep.
Darrell "Legs 'n Lungs" Lenkner
in West Chester, Oh.
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2455
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1331 days
Triguy98 posted 3 years ago.
There have been many attempts to maximize the biometric aspect of cycling. It always comes back to round. Check out the old Biopace chain rings, for instance. I dont have a link, but have seen pages floating around...
Life is short. Play hard and get dirty doing it.
12
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1637 days
Retrogrouch posted 3 years ago.
Many years ago, I had some of the old biopace rings. I really didn't like them. They gave the sensation of wobbling. By that, I mean the speed of the cranks seemed to vary as they turned round the axis.
I could not tell if there was any increase in performance or efficiency, but the wobble really played havoc with my pedal stroke. So, I gave them up after about a week.
RG
Hey all,
just came back from the local bike store. A friend of mine who works there pointed out a new product to me. Your crankset will never look the same..
This product as been design under the name of HARMONIC and commercialized under the name of O.SYMETRIC. The project is teamwork specialized in human performance and health. We have focused our research to obtain the dynamic adequacy between cyclist natural strength and strength to apply on the pedal, this giving both performance and ergonomic.
The principal is that the force to apply on the pedal is constantly proportional to the muscular force of the athlete. When the pedal is up the strength of the cyclist is small (Higher dead point) the wheel radius is small, then when the pedal comes near the horizontal the cyclist can develop more strength the radius is bigger and then decrease to the lower dead point. The wheel radius is constantly changing degrees after degrees to adapt the gearing ratio in function of the athlete natural strength. The geometry created is tow successive curves having a unic symmetry, central point of rotation.
www.osymetric.com
Noel.
www.noelbrand.blogspot.com
It ain't much, if it ain't Dutch!!