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Alternative to Powercranks and Rotercranks?
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Came across an ad for these strange P.M.P. cranks from the early 80's

http://www.classicrendezvous.com/Italy/PMP_crk_ad.htm
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Re: Alternative to Powercranks and Rotercranks? [Brent F] [ In reply to ]
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Maybe Frank can work that one into a PC and now you can have the best (worst) of both worlds. I'm sure someone on ST will want to buy it to improve their pedaling and as a side benefit become a better runner and maybe a better person!!!!
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Re: Alternative to Powercranks and Rotercranks? [Brent F] [ In reply to ]
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I'm no engineer, but I think I understand the "thought" behind the design, ie they're trying to increase the lever arm without increasing the centerline of crank to pedal hole distance. Somebody correct me if I'm wrong, but isn't the virtual crankarm actually coc-to-phd? Therefore all this crank is providing is more weight and potential for flexing?
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Re: Alternative to Powercranks and Rotercranks? [Brent F] [ In reply to ]
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Mechanically, this is identical to a simple straight-line crank from bb to pedal hole.
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Re: Alternative to Powercranks and Rotercranks? [Ashburn] [ In reply to ]
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Hey, you can't criticize it if you haven't tried it.
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Re: Alternative to Powercranks and Rotercranks? [Bitey] [ In reply to ]
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Did you know you can try it for up to 3 months and if you don't like it, can return it for a full refund. They guarantee results after a "breaking-in" period, but you see improvements in your running right away and maybe even your swimming!!
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