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 Di2 and non-human power source
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1 Posts

Posted - 03/03/2017 :  13:26:31  Show Profile  Reply with Quote

this is my first post. I'm interested in HPV:s but not active.

I read the rules with regard to some imaginary projects in my head.

Rule 3.1.1 states that no control devices may be powered by non-human power sources. This makes me wonder what a control device is. Are the Shimano Di2 derailleurs control devices?

If anyone have thought about this or know the interpretation of this rule I would be very grateful if you would let me know.


Don S

83 Posts

Posted - 03/27/2017 :  20:41:51  Show Profile  Reply with Quote

This is not an official response but derailleurs alone are not a control device. It is my understanding the IHPVA allows battery powered electronic derailleurs. It is also my understanding that the rules only prohibit non-human powered sources that contribute or might be construed to contribute to the forward momentum of the vehicle.

"it's important to understand what makes them fast. It's more important to understand what keeps them from going faster." DS
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