I'm designing my e-bike, and I really, really want a Vectrix-style twist-grip control. Namely, go forward by twisting backward with your right hand, release the grip and it rotates to neutral, and apply regen braking by twisting forward. Now, this is not brain surgery. For example, for the Kelly BLDC controller, you need a 0-5V pot for the accelerator, and a 0-5V pot for the brake. So, questions:
1) Would a Vectrix dealer sell me the part? This seems unlikely, since I do not own a Vectrix (and I gather that they are having a hard time both selling and maintaining them, based on items here on V and on AutoBlogGreen). On the other hand, if I wait, there may be plenty of inventory...
2) Even if I did convince a dealer to sell me the part, does the Vectrix twist grip implement what I need (i.e. opposed pots)? Vectrix owners, speak right up now... ;)
3) If I fabricate one of these (ugh), what is the best approach? Build the dual pots into the grip, or put together a dual cable twist grip into a pot box?
Yes, I know that Vectrix claims to have a patent on this design. But for my own custom bike there won't be an issue. I would be happy to buy the part from a Vectrix dealer if they would sell it to me.