RH212
The Nine Continent direct drive motors are from a very high volume Chinese motor manufacturer that sells mostly to the domestic market, but they recently produced a more modern motor version with the RH/FH212 series that has proper disk clearance and cassette freehub compatibility, and we've had these custom made with 0.35mm laminations for low rolling drag and a Statorade injection port for heat dissipation.
For people looking for a low cost but well performing drive motor choice, these hubs can fit the bill perfectly.
See our Motor H212 Kits Info Page for full details