80amps should be fine. I can answer your other questions via phone. I’ll pm you my number.
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Should be fine man.
There’s pros and cons to hub or mid drive. Mid drive offers mechanical advantage with pulley/gear/sprocket ratio. Its also puts much less strain on the frame by being center located and mounted to the stronger portions of the frame. Cons are that it’s more effort to install and can eat up space that could otherwise be used by the battery. Hubs are easy to install and remain out of the way. Cons are that it’s only ever a 1:1 ratio. Increasing torque output has to be done electrically only. I use a MXUS V3 hub for my ride.
Typical hall effect based thumb throttle
It mainly boils down to battery limitations rather than the controller as long as you operate it in the advertised current limits. You need to make sure your battery can absorb regenerated energy at all times.
Not that I’m aware of. I just use a phone holder mounted in the center of my handle bars and use the VESC android app for telemetry and real time data.
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Thanks man really appreciate the in-depth reply
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There’s this mount:
Also a version of DAVEGA with a smaller display made specifically for e-bikes/e-scooters is on my TODO list. It’s still months away though.
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What are the dimensions generally, length x width x thickness available for OW and EUC?
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Not sure what you’re asking about exactly, but I can give you some dimensions. I posted something here for example: DieBieMS fork: ENNOID-BMS for 6S to 24S battery packs - #190 by Zippy
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Thanks! Well that’s more than I could ask! And Plenty of space inside, what do you pack in this, only esc and BMS or also battery? And is there another similar enclosure on other side of the OW to fit more batteries?
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This is the battery box, you can see the BMS in the pics and the rest is battery. The controller box on the other side contains the controller. You can see the Pint one in my build thread: Onewheel Pint with Little FOCer build thread (#focfm) The XR one is quite different.
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when is v2 dropping
Assuming you live in London you can relax now. They ceased dropping V2 in 1945. 
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I’ll announce progress on the next version as it happens. Prototypes have been shipped to me. They’ll need to be analyzed on the bench and then field tested. Stay tuned
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ok, could you make a vesion with mosfets facing the board and diy heatsink?
current design uses 30 parts to mount the heatsink 
I don’t quite understand your request. For one, the regular controller comes with a pre-mounted heatsink. You shouldn’t have to mess with that. If you are referring to the “FM” version, then the rev 2 doesn’t require spacers and such in order to mount the controller to a heat sink or plate.
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yes exactly, was it possible to buy the fm without the connector kit? I’ve never seen it in stock anyways. So rev2 will be like the fm?
The idea is still to have an “FM” version as well as a generic version just as before.
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ok is the fm version available without the connector kit? how much money do you save without the heatsink assembly? what does fm stand for?
kinda looks like the trampa mkv ngl
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wow. You know I think they might be from the same daddy.
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Things are looking good for this new rev. It’s more smooth and much more powerful. It’s exceeded my expectations so far in bench testing. Field testing in my ebike will happen soon. Then field testing amongst a few other individuals will happen. I will be pushing for quick feedback
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