That's also how chain hoists work - I'm still amazed at how much you can lift us... | Hacker News

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jakeonthemove on July 19, 2012 | parent | context | favorite | on: Epicyclic Gearing

That's also how chain hoists work - I'm still amazed at how much you can lift using one!

I actually thought the article will be about Biopace bike chain rings: bikers are using them as an advantage in races (and it really makes sense!).

Terretta on July 19, 2012 [–]

Supposedly, Biopace was shown to be counterproductive, while the newer Rotor Q-Rings are correctly designed.

The new hotness: http://www.rotorbikeusa.com/science.html

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