Don’t worry about wheel size, it’s a very easy fix. We are making 90mm and 97mm wheels, and 107mm. For 2wd, you are stuck with 83mm for the time being, because we don’t have matching front wheel. But for 4wd, you can select any of these sizes. If hummie tries to tell you 83mm only when you buy them, don’t worry. We are making the molds for these larger sizes for 4wd. He’s a bit resistant, but if need be, I’ll take some charge there, cause I need them personally. Had I had 90mm or 97mm wheels, I might not be laid up in bed right now
For 4wd, you can use any of these sizes. if you do want super large like 107mm, you will want a lower kv motor, so let us know. I will talk to john and try to sit down with him and organize the pre-orders. They are all in paypal right now, so we won’t miss anyone. But we’ll need to go back at some point soon and see what sizes for those who are ordering 4wd you want.
You need a stator large enough to not heat up in the first place. The option is either wide and short or narrow and long. The first option is what most hub motor manufacturers try to do. It results in a thin urethane patch. What we are doing is the second case. By having such a long and narrow motor, we get the power and efficiency needed from a motor, while giving you a lot of space for urethane. Compared to an 83mm abec flywheel, our urethane depth is only 2mm less. So the argument of less urethane is becoming harder to claim here. We have almost the same as a traditional long boarding wheel.
4wd with these run cooler than the raptor 2. I mesured temps of the raptor 2 on Friday at the event. Moja’s raptor 2 motors were at 104 F while my motors where at 90 F. Heat in 4wd especially is so far from an issue, that you can forget about it. Even the heat in 2wd I suspect will be minimal in most cases. I still recommend 4wd though, as I find it’s more of a predictable acceleration and braking, better traction on sketchy roads, and will reduce wear and tear on the motors for an even longer life. I expect the life of a 2wd though even to be many years.