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Anyone here using the 'The Rotor Sysytem'? Gimmick?(10 posts)

Anyone here using the 'The Rotor Sysytem'? Gimmick?mdehner
Oct 2, 2003 10:50 AM
Just heard of this device for the first time, and it makes me curious.

"What is Rotor System and how does it work?

Rotor is an innovative pedalling system that eliminates the dead point. The dead point of conventional pedalling is the void that occurs when the pedals are vertically positioned (one at the top and the other at the bottom), which is a moment at which neither leg can transmit any power.

The dead point limits the cyclist's performance, causes tendonitis and injuries to the knee, as well as discontinuity in the traction.

Rotor System provides the definitive solution to this inefficiency, which is typical of conventional pedalling, by definitively eliminating dead points.

Rotor makes the cranks independent in such a way that they are not aligned at a fixed 180º, but rather the angle between them varies during the cycle in such a way that one pedal never coincides with the one below, thus avoiding power vacuums.

Such an effect is achieved by the use of independent cranks that are synchronised by means of an exocentric axel and two rods, which vary the development during the cycle and adapt to the muscle power of the legs at all times.

By eliminating the dead point, Rotor optimises the effort of the cyclist and reduces the risk of injury, providing a notable increase in performance and more comfortable and healthy pedalling."

http://www.rotorbike.com/eng/whatisrotor.htm
sounds alot like new biopace to me..Steve_0
Oct 2, 2003 11:52 AM
I guess I'm just lucky that after 35 years of cycling I havent experienced dead-point-induced tendonitus or knee injuries.
Similar concept...Fatnslow
Oct 3, 2003 6:20 AM
completely different execution.

Biopace was a much more elegant way of obtaining a similar result. None of the weight or complexity involved with this system.

Biopace actually did work, its too bad it never caught on.

My commuter (a 1990 Giant Sedona) still has Biopace on it.
Not me, butvindicator
Oct 2, 2003 2:09 PM
The link in the post down below on the recumbent riders who did the 4 hour century TT quoted one of the riders as swearing by his rotor cranks, FWIW...
With good cycling technique, there is no dead point (nm)Rich_Racer
Oct 2, 2003 3:11 PM
The key word is gimmick!Kerry Irons
Oct 2, 2003 5:00 PM
Something like this "breakthough" is "invented" every 10 years or so. First patents on this kind of technology date to the late 1800s. Somehow, they just never catch on. I can't imagine why! (he said, dripping with sarcasm).
The key word is gimmick!nc
Oct 3, 2003 12:27 AM
Can you imagine the dead spot area being completely
effectively eliminated by using that area as part of your main power stroke? It would enable you to use a higher gear
for the same effort.
An interesting conceptFatnslow
Oct 3, 2003 6:18 AM
I had actually toyed with doing something like that myself. One of the problems with that is that the complexity (and attendant weight) it adds to your road bike would not be worth it for the benefits gained.

I would see this being more beneficial to mountain biking (where a dead spot on a steep climb can throw you completely off if you are momentarily distracted).
An interesting conceptmpm32
Oct 3, 2003 7:59 AM
FWIW read this;

http://www.bike.com/template.asp?date=9%2F24%2F2003&lsectionnumber=6
An interesting conceptdnc
Oct 3, 2003 11:22 AM
With ROTOR cranks you are still confined to applying the power between 1 and 5 o'clock and while they do allow you
to start the pedaling slightly earlier, it can be difficult to avail of this advantage as your leg muscles have to adjust when changing power application from one
leg to the other. Seriously it is possible to start main
power application at 11 and end at 5 o'clock, it was done before and will be done again within the next few months,
and naturally with normal pedals and cranks etc and no
additional equipment.