[RBW] Re: Cerdan Crankset

2021-07-06 Thread Cyclofiend Jim
This idea has been around a long time. If you go back into The Data Book, you'll see early drawings of spring-loaded cranksets. There was "BikeDrive" a few years ago, and there have been more throughout the decades. They have not caught on yet, which I don't think is a bad thing. It complicates

[RBW] Re: Cerdan Crankset

2021-07-02 Thread Doug H.
How many inventions went through iterations until something new and improved was accepted by the masses though? This particular design may not be accepted or even particularly functional but I like the ingenuity of the inventor. The process of invention is more like evolution than creation in

[RBW] Re: Cerdan Crankset

2021-07-02 Thread ascpgh
Well, "the dead zone" also has more distinct margins on stiffer frames. Maybe if M. Cerdan had a more supple frame he would find that its recoil from deflection during his input power zone there would be less of a "dead zone" if any. Instead of inventing something without measure of an

[RBW] Re: Cerdan Crankset

2021-07-01 Thread Michael Morrissey
Wow that is really interesting. I would love to try it! My 30 second search of the internet shows none for sale though. Thanks for posting this. On Thursday, July 1, 2021 at 2:06:07 PM UTC-4 Doug H. wrote: > >

[RBW] Re: Cerdan Crankset

2021-07-01 Thread Garth
I doubt it. It's highly proprietary, the rings(1,2,3 ?) would have to be specific to it. No mention of the bottom bracket. Proprietary = boat anchor on land. Some cycling geeks would buy/try it, but never the mainstream. On Thursday, July 1, 2021 at 2:06:07 PM UTC-4 Doug H. wrote: > >

[RBW] Re: Cerdan Crankset

2021-07-01 Thread Peter Adler
And hey: Doesn't this design pretty much demand a 1x(X) chainring setup? What about the hundreds of millions of cyclists who ride multi-chainring bikes, Monsieur Engineer Guy? Peter "like I said" Adler Berkeley, CA/USA On Thursday, July 1, 2021 at 12:56:06 PM UTC-7 Peter Adler wrote: > "*if

[RBW] Re: Cerdan Crankset

2021-07-01 Thread Peter Adler
"*if you’re a keen cyclist , you probably know the difficulty of the so-called ‘dead zone’ when pedaling."* So, yet another iteration of the "I don't feel like I'm getting the same amount of power at every degree in the rotation" fetish. Has