Just email him lol
I like the idea but needing hub motors for braking negates the gain you get by being able to run only one motor between 2 wheels. 4WD is total overkill for an esk8, unless it’s an all terrain board. IMO this would only be a game changer if it had brake functionality.
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there are cheaper ways to add breaks to a longboard than hub-motors
It has brakes.
If he is using one way bearings on the small gear any time brakes are applied the motor would lock the bearings/gear which would make braking turn into sliding…could be fun, but not the gradual brake everyone is used to. This would make sense than that he is using one way bearings in the small pullies and why he is using this in a awd setup with hubs in the front, since he can use the hubs for braking and set up the rear to not have functional braking.
Was kind of hoping he may have found a way to make this work like a conventional differential, but it seems more than likely that he has just used one way bearings.
Here’s one for the Carvon owners…
If you had the extra motor at the rear…and it did not have brakes…would the dual hub motors be able to slow you down enough?
Just as a guess…I would assume if the rear dual was just a pusher and coaster (I’m guessing) …the dual motors would enough to stop you…
Ok GO!
Edit Additional thoughts:
Hence my thought this will not be sold as a single unit…it must be paired with the regular Carvons…because these are not intended to stop you…Just push and coast
From Carvon Facebook:
No LSD, but it has one-way bearings inside the motor pulleys, allowing for freewheel and the outside wheel to go faster than the inside for proper turning. That also means it can’t brake. But the Dual Hub motors in front takes care of that. Basically, it provides torque at low speeds and disengages at higher speeds. It gives the board the torque needed to climb hills and coasting/top-speed of the hub motors.
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any pictures of this setup? I’m intrigued
Ohh …I didn’t even read that and I got it right 
I just saw a picture in another thread. gee, its a a pretty complicated setup. I can only imagine it would be noisy?? still props for doing it first!
I’m struggling to understand how this is better than a dual belt driven board. With dual hubs up front it wouldn’t be lighter, unlikely to climb or stop better, I guess it could have a higher top end, but so what. Maybe I’m missing something…
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Please explain. Source ? How can it brake if you’re able to ‘freewheel’ each wheel ?
just because it could be done.
it is by no means more economically viable, but everyone always wants to power 2 wheels from 1 motor.
thought it seemed like a little DIY experimentation. Nothing wrong with that.
It’s not an experiment he’s full one gonna sell this board …
I don’t think he’s done just yet 
Its actually a novel way to get a 4x4 without 4 times the cost.
I have a board with all terrain pneumos, one wheel drive kinda sucks when carving.
Now that the capability to drive the wheels has been established, the next (equally important) question is how you stop them.
Based on the discussion and video, and to keep cost down, I think the simplest solution would be mechanical brakes. If memory serves correctly, this is something that @Brakeboard proposed (for reference, I have not used his brake systems).
Correct me if I am wrong, but if you have a system to apply mechanical brakes, this may in turn allow for a greater variety of speed controllers, potentially plane escs as they would theoretically not need to a braking function programmed in.
What do you guys think? Food for thought…
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I think we’re trying to find ways to like this configuration even though it has obvious drawbacks. It doesn’t really add anything useful IMO. Mechanical brakes ? Too complicated.
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Wish I still worked at a machine shop and had all the equipment to try some stuff out. Would be an interesting project to try and stuff a 1/5 scale rc differential inside the stator of an 80100 motor.
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