This is an old topic yeah but not recently visited with new technology.
I’ve already put together a build I just want to double check with some experts to avoid huge disappointment. Although if esk8 calculator is correct it should be fine. I was considering using the following main parts: https://hobbyking.com/en_us/turnigy-sk8-esc-v4-12-for-electric-skateboard-conversion-w-bec.html
The batteries are similar prices but the li-on will last longer but is harder to build. Is a Supower bms worth extra or can i just use a cheaper one and only use it to charge and balnce while in use. 26mph, need to do about 10 miles a day on a flat beachfront cycle path. Max gradient is 5%. This is purely a commuting board for my lectures.
EDIT: 16-36 gears, 83mm wheels