Student from Poland needs some help.Its my first project. One months ago I intersed build my own Electric mountainboard (one motor) . I was reading your forum and other sites. I knew something and probably need some sugestion
I bought used mountainboard ‘scrub’
Motor- 190kV
VESC
Battery (bought)
3x ZIPPY 3000mah 6S 20C (9000mah 6S)
At the start should be good, in the future I would go 12S.
Nice one I bought the same used deck in … 2015 or before …
Love the shape (the stance is a bit too short for me for hard off-road or race mtb, but really cool for cruising and riding the trail on those 9" primo stricker
For motor, if you can (like you will be riding strapped I guess), take the sk8, with low kv (130)
sk3 are better made, but I also use the sk8, and for a 1st build i think it should be ok.
VESC … if can’t get a good deal of 2 focbox or v6 like to ride in foc mode. It should work (it was my 1st emtb too, vesc 4.10, 12s5Ah, 6374 170kv …etc) but prefer bldc. Try to get one more of your lipo maybe (12s6Ah looks good to start)
Try to buy Alloy mount as soon as you can ^^
Go with chain maybe ? (it could be cheaper if you drill it yourself)
determine your ratio after choosing your battery setup, kv, and wheel size (but keep those 9" maybe just change rim in the future )
Good continuation
EDIT : mayoboard !.. awesome, definitly a right name !
Probably when I was updating firmware my vesc I bricked it. Any updates doesnt work. When I try to connect VESC tool 1.19, still this same ‘too old firmware’
My Flipsky FSESC FW version 3.57
Could I trying looking for VESC tool v.1.15 which support fw 3.57? Or trying rescue bootloader by ST-link and programmator. Anyone can help?
no st link.
go to firmware in the vesc tool.
there is a tap for bootloader.
click on it and upload the bootloader file.
after that load the firmware like you did before.
Motor- Turnigy SK3 245kV
Battery- 3x ZIPPY Compact 6S 3000mah
Controller- FSESC Flipsky 4.12 50A
Mountainboard- Scrub furnace
Pulleys-12/60, belt HDT-5M
Motor mount- Turnigy motor mount
Switch- Flipsky antispark switch
My problem is ‘Tooth in mesh’. With this pulleys and short motor mount. My score is 4, correct is 6. Pulleys 16/72 and longer motor mount Will do the trick.
Problem with Vesc firmware was solved by Flipsky support sent me VESC tool support my fw
Im suprised, because everybody said ‘6S is too weak for mountainboard’. On flat ground where is no asphalt desk have no problem. Riding on pavement, flat forrest Road or getle hills situation is the same. That was my priority
Its my first build. Little by little to check if it’s for me. And I can say - ITS FOR ME
Build cost - 500$
Max speed - 30km/h
Range - 12km
I already thinking about upgrades. Battery and more range is second thing after pulleys and motor mount.
I will note about upgrades and change, greetings from Poland and thanks for help
I bought 
mayoboard !.. awesome, definitly a right name !
I did it, doesnt working. I watched youtube, looking internet and nothing.
Motor- Turnigy SK3 245kV
