The QS 205 V3 with 50 mm magnets is a common choice when a build needs several kilowatts from a spoked hub motor. Its 222 mm shell takes 36 spokes and bicycle-style disc brakes, so it can be laced into bicycle or motorcycle rims.
The motor carries two complete hall sensor sets, so a spare is already inside if one fails, plus a KTY83/122 temperature sensor for controller thermal protection. Speed depends on winding (kV) and wheel size.
Power levels are far above EU pedelec rules; it is meant for off-road, export or L-category builds.
Specifications
| Parameter | Value |
|---|
| Motor type | High-power direct-drive |
| Position | Rear |
| Max torque | 182 N·m |
| Rated speed | 933 rpm |
| Efficiency | 91% |
| Hall sensor | Yes |
| Brake compatibility | Disc |
| Finish | Black |
| IP rating | IP54 |
| Operating temperature | 70–120°C |
Models & specifications
| Model | Position | Voltage | Rated power | Dropout | Freewheel | Wheel sizes | Weight | Top speed |
|---|
| QS 205 50H V3 (kV 9.0) | Rear | 48 / 60 / 72 V | 3000 W | 150 mm | Single or multi-speed freewheel (14 mm thread) | Bike 20–29” / moto 16–21” | 12.5 kg | 40–70 km/h |
Highlights
- Spare hall set: Two hall sensor sets built in, one as a spare.
- Thermal sensor: KTY83/122 for controller temperature limiting.
- Flexible wheel build: 36 spoke holes for bicycle or moto rims.
FAQ
What controller does it need?
A high-current controller; the spec sheet lists 67A rated / 104A peak battery current and up to 326A phase current for short periods.
Can it run on 48V?
Yes, both sources list 48V as supported; top speed is lower than at 72V.
Wholesale, quote-only. Tell us the quantity, wheel size, dropout, cable/connector and brake type you need and we will reply with a quotation.
