This is an interesting design - very elegant. I think most of what Hanibi is saying in his review is correct; however some of the losses could be mitigated at a cost.

Lubrication sticktion is another issue whenever you have that may moving parts in a lubricating film.

Years ago I purchased a Rohloff hub (14 planetary gear hub) and performed micro polishing of all the internal parts (remove most of the friction) to see if I could make it more efficient. My thought was to make a super smooth zero weight oil hub like theirs - placed inside a disc wheel and then you would just have one cog in back and one chain ring in front [no front mech]. Efficient and aero was the thought process.

I did a lot of work but ran out of energy on the project :-)

I'd love to take these Classified internals and micro finish all the internals and see what could be accomplished.

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Dan Kennison

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