Monday, April 8, 2013

Retro Direct Drive

Two gears and no shifting; perfect for people that can't think about shifting gears. In fact I have a hard time remembering which way to shift down sometimes because I have two bikes with friction shifters; both in opposite directions.

 Retro-direct was developed by French inventor Paul de Martin de ViviĆ©s
(1833–1911). I think it was meant for a 60degree seat tube

Building a Retro-Direct Drive Bicycle


more odd drives:

Shaft Drive
This one would be good if it works right, but unless it is in an oil bath, dirt will distroy it.

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