If you are willing o wait a few months, Enertion sells them with discounts (the more you buy). Pairs sell for $180, so two would be $350 more or less (shipping not included).
I wouldn’t build this till VESC 5.0 or if you feel capable of switching the current shunts with ones for 10-12s voltage at 30-60Amps. FOC doesn’t like going higher than 10s 20Amp with my current unsensored motor.
Don’t think that the @Hummie hubz are 200kv, think they are 80kv or 90kv.
Wheel size is around 83mm, so that would give you around 55km/h unweighted, weighted around 39km/h
maybe i am the pussy here but was this not the guy who lost the rubber in his front hubs?
so maybe try it with some normal outrunners via belt, i mean for the speed record in normal situation i have not heard of anyone losing his urethane.
Probably. Never tried. I could add a core and should. Paint a harder duro rubber on the inside before pouring or add some fiberglass right at the center. The rubber needs improving. I’ve been good at half that speed though
Little car tires with a little tread would be awesome. Not going to happen likely. Looked into how they make those. There’s no DIY method I fear. Composites with a mix of rubbers and whatever else they can find. Still natural rubber is in there a bit. Can’t be beat