Longboard wheels, Electric or not.

USE AT YOUR OWN RISK: These have not be extensively tested and with the TPU I used grip was an issue (great for sliding!) I'd imagine a good TPU like NijaFlex would be much better if you can print it. The hub may break, these could be dangerous, I am no engineer.

Various types of wheels for a longboard with bolt spacing for various ebay kits.

Bolt holes are 4mm

35mm spacing is for the chain and sprocket type kits:
https://www.banggood.com/Sprocket-Chain-Wheel-For-8044-Electric-Longboar