100% IMO at least with vesc based esc’s but tbh I didn’t try sensorless FOC. It was so frustrating with my cogging motors when I finished the MTB build, sensors doesn’t really work in BLDC mode and you get stuck everywhere. Here you can see the dramatic difference between hybrid or sensored BLDC and sensored FOC mode with sensored motors.
Thanks! Just saw somewhere that you didn’t need sensors on an Emtb but thanks for clearing that up!
Comp 95 pro retalliation (discontinued)
focbox unity
maytech 6374 10mm shaft 170kv
battery will be top mount and provided by the customer (lipo)
gears are 16t motor and 58 wheel
That looks very nice… what’s the specs?
More info on the vesc box mounted on the back?
5Ah lipos are nowhere near stressed on a MTB. My RC heli gets 5-6min flight time out of a set of such lipos. Average current draw is 35-40A with maximum 120A and I am not a hardcore pilot or run a really powerful build.
Believe me when I tell you that they are not breaking a sweat.
So what you would say out of the rc world which temp they shouldn’t exceed for esk8ing?
If you can take them out you of the heli, you are good. 
We are not measuring battery temps really. As long as they are not puffed we call it good. Don’t forget that they are also cooled by the rotor draft and that we treat them more as a consumable than you would treat an esk8 battery.
I would expect a good amount of voltage sag and puffing if it’s really serious. Both I don’t see, as min not significant.
Good lipos barely have any voltage sag. Check my graph above.
I think I have seen this or similar already once somewhere 
that was a graphen lipo? Sag looks not that bad assuming that there peaks of 120+A
I believe we had this discussion again
Graphene lipos did not even exist at that time.
Nice. Who made your battery? Was it any good? 
I’m dying to ride mine again, but i’ve got some trouble with one of my VESC 6 so here are older fotos:
(kind of forgot my head there)
2x Overion 6374 130kv Motors
2x standard VESC 6
Arduino + Nrf (soon LoRa) remote control
12S1P 12Ah Graphene 15C LiPo
3D Printed Inner Gear Direct Drive (soon to be much improved version 2)
Just a question to you guys but has anyone used a portable ramp or just a skate kicker to use as a little jump ramp? @rich @venom121212 @Der6FingerJo @Andy87
@okp has a portable backpack jump thing. I think it was a few hundred bucks though.
Jumptrack is the name
After riding like less than 10kms on my new eMTBoard build … I’m still waiting for FlipSky new rotors … for both motor … and it’s been more than a month now … 
(And I’m hardly trying to define 3 builds for the future : a cruiser (the shorter of my deck, urethane wheels, Mad Fury DD…), an AT carver (the “racer”, 12s, dual ESCape, Berg., hammock base plate, custom GD …), an eMTB (the new Darth Vapor)… and the Dirt scoot, the eMTBike soon etc …
really hard when you get like 6 or 7 builds of parts laying around for more than 3 years …)
The old one (last summer)
Training switch
