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PPV gearing

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Uploaded by on Oct 12, 2006

One problem with the PPV human-powered tandem proto-velomobile was that its gearing was cumbersome. Despite having only three speeds, it used an amazingly clunky gearbox.

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Sports

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Standard YouTube License

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  • some audio would be handy.

  • The new models are seven speed and use an internal gearing system.

  • Wow, a chain driven auto style transmission. The question is, is it more efficent than either planitary or derailer type drive systems?

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