These days there are a number of good providers of electric skateboards parts the following are my thoughts and experiences.
Been in the game of selling DIY electronic skateboard parts for the longest. Sell all parts. Nice motor mount at an okay price. They have single motor kits starting at $729 (less batteries)
I’ve personally purchase a VESC from them. Frankly I’ve has trouble with it but I don’t know if that was a motor issue of a quality issue which I’m still testing so not comment on their refund policy/quality at this stage.
Chinese based company more recently selling. Focused mainly on selling VESC both version 4.12 and 6 Vat a good price and motors. Their others components are a bit lack lustre.
Purchase from them previously they charge me $70 for shipping to “remote” part of the world (a large city in Australia)
Chinese store selling kits and full boards. Awful website but they have a huge range of kits and parts. Selling more on the budget end. Don’t seem to sell VESC style speed controllers but other types. Single motor kits from $329.
Relatively newer selling with a US base. Focused mainly on creating and selling battery packs but have most of the other parts you will need.
UK based they sell the full range on parts needed for your e-board build. Their own motor mounts, Torque board ESC and standard motors. No motor style parts sold. .
Selling out of Europe. Have kit, part, and motor mount designs. They have kits starting at $820USD
Focus is mainly on mountain boards. They sell complete boards, kits and parts. Higher end products selling out of Europe.
Maytech – selling through Aliexpress
Pretty standard fare selling VESC and other components through Aliexpress. The mounts don’t look fantastic and you would think that the pricing would be a touch cheaper on Aliexpress. Kits from $602USD
No. Just no.
Ebay & BangGood
You can also buy parts off ebay (surprisingly found good pulleys) and BangGood