QS Motor QS205 5000W 50H V3 Fat 20×4 (4T, 170mm)
QS205 50H V3-pattern direct-drive hub motor, 5000W rated / 10000W peak, pre-laced into a 20×4 fat/snow-bike rim (170mm dropout, 80mm rim width default). 205mm stator, 50mm magnet stack, 16 pole pairs, 48–96V (72V design), disc brake, dual hall + KTY83 temp probe. 4T winding sets torque-per-amp and top speed; peak torque is a current-limited envelope (~200-220+ N·m at 100A+). Sold by NBPower as 'NBpower/QS205 50H V3'; consistent with a genuine QS205 50H V3 but not independently verified as QS-produced (units stamped 'NBP WP50H').
In brief: 5000W direct drive rear hub motor. 20x4" wheel. Fits 170.0mm dropout. Disc brake compatible. From $412 across 4 sellers.
Specs verified Jul 18, 2026
Where to Find
Prices tracked across 4 sellersAliExpress - NBP Electric Store
$412.31 + $141.76 shipping
AliExpress - NB Ebike Factory Store
$590.00 + free shipping
eBay - NBPOWER EBIKES
$599.00 + free shipping
AliExpress - ND Ebike Factory Store
$465.30 + $154.35 shipping
* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $412.31. Over the past 90 days: low $412.31, high $599.00, average $582.03 — down 29% vs average.
- AliExpress - NBP Electric Store
- eBay - NBPOWER EBIKES
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - NBP Electric Store(1 record) | |||||||||
| Jun 21, 202608:57 PM | $412.31 | $141.76 | $554.07 | Initial | — | — | — | Yes | active |
eBay - NBPOWER EBIKES(8 records) | |||||||||
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | $0.00 | — | — | — | Yes | active |
| Jun 12, 202603:37 AM | $599.00 | $0.00 | $599.00 | Initial | — | — | — | Yes | active |
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Specifications
Performance
- Drive Type
- Direct Drive
- Wattage
- 5000W
- Peak Wattage
- 10000W
- Rated RPM
- 770
- Pole Pairs
- 16
- Stator Diameter
- 205mm
- Max Torque
- 200.00Nm
Fitment
- Position
- Rear
- Dropout Width
- 170mm
Wheel
- Pre-laced
- Yes
- Wheel Size
- 20" x 4" (Fat)
- Disc Brake
- Yes
- Rim Brake
- No
- Spoke Holes
- 36
- Freehub Type
- Threaded (Screw-on Freewheel)
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Yellow | Phase A |
| 2 | Green | Phase B |
| 3 | Blue | Phase C |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | White | Motor Temp |
| 3 | Black | Ground |
| 4 | Yellow | Hall A |
| 5 | Green | Hall B |
| 6 | Blue | Hall C |
