SOMEDAY MTX39 72V 3000W Rear DD Hub Motor (Purple)
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SOMEDAY MTX39 3000W 72V gearless direct-drive rear hub motor laced into a 27.5" double-wall motorcycle-style (MTX39) rim. A generic high-power Chinese DD hub for e-bike/e-moto conversions, sold bare ("Only wheel") or bundled into a UKC1-display conversion kit.
In brief: Hub direct drive rear hub motor. 27.5" wheel. Fits 135.0mm dropout. 72V rated. Disc brake compatible. From $222.
Specs verified Jun 26, 2026
Where to Find
Prices tracked across 1 seller* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $221.86. Over the past 90 days: low $221.86, high $221.86, average $221.86 — about average.
- AliExpress - SOMEDAY Official Store
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SOMEDAY Official Store(1 record) | |||||||||
| Jun 16, 202607:50 AM | $221.86 | $174.16 | $396.02 | Initial | — | — | — | Yes | active |
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Specifications
Performance
- Drive Type
- Direct Drive
- Peak Wattage
- 3000W
- Rated Voltage
- 72V
- Rated RPM
- 840
- Max Torque
- 120.00Nm
- Max Speed
- 105km/h
Fitment
- Position
- Rear
- Dropout Width
- 135mm
Wheel
- Pre-laced
- Yes
- Wheel Size
- 27.5" / 650b
- Disc Brake
- Yes
Physical
- Weight
- 9.3 kg
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 |
