12-Inch Electric Scooter & Folding E-Bike Rear Hub Motor Wheel - 36V 350W / 48V 500W Brushless Motor (With / Without Tire)
Upgrade or replace your electric scooter or compact folding e-bike powertrain with the 12-Inch Brushless Gearless Rear Wheel Hub Motor. Available in 36V 350W (speeds up to 30 km/h) and high-output 48V 500W (speeds up to 35–40 km/h) configurations, this solid cast-alloy hub motor delivers energetic acceleration, whisper-quiet operation, and reliable hill-climbing power for daily urban commuting.
Engineered with a robust one-piece cast aluminum alloy wheel (no spokes to loosen, bend, or true), standard 125 mm rear dropout spacing, and an integrated 6-bolt disc brake mounting flange, this motor is a direct bolt-on upgrade for seated mini electric scooters, folding bicycles, and custom DIY micro-mobility builds. Choose between the complete wheel with pre-installed pneumatic tire or the bare motor wheel to transfer your existing rubber.
Product Demonstration & Running Video


Key Features & Performance Benefits
- High-Efficiency Brushless Direct-Drive: Gearless internal motor architecture eliminates wearing gears, ensuring near-silent rotation, instant torque delivery, and long-lasting maintenance-free operation.
- Two Power & Voltage Options: Select either 36V 350W (up to 30 km/h / 19 mph) or 48V 500W (up to 35–40 km/h / 22–25 mph) to match your vehicle's battery and controller setup.
- One-Piece Cast Aluminum Rim: Solid spokeless alloy wheel eliminates spoke maintenance, wheel truing, and rim warping under heavy rider loads.
- Flexible Tire Configurations: Available with a pre-mounted heavy-duty pneumatic tire and tube, or as a bare wheel hub ready for your choice of 12" street or off-road tires.
- Standard 6-Bolt Disc Brake Mount: Integrated 6-bolt M5 rotor flange (44mm BCD) accepts standard 120mm, 140mm, or 160mm bicycle and scooter disc brake rotors.
- Heavy-Duty M12 Axle: Durable steel axle with 10mm flat anti-spin notches fits standard rear dropouts securely and includes heavy-duty torque hardware.
- Universal Micro-Mobility Fit: Perfect for mini Harley scooters, seated folding e-bikes, DIY electric go-karts, and compact balance vehicles.


Dimensions & Axle Dropout Fitment
Please verify your vehicle's rear frame spacing before ordering to ensure seamless installation:
- Rear Dropout / Fork Width: Designed for frames with 125 mm rear axle spacing.
- Axle Dimensions: M12-1.25 threaded axle with 10mm flats; overall axle shaft length is 175 mm.
- Rim Diameter: Nominal 12-inch cast alloy rim (approx. 166 mm rim body diameter; 203 mm bead seat diameter).
- Disc Brake Flange: 6× M5 threaded holes on standard 44 mm Bolt Circle Diameter (BCD).






Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage Options | DC 36V or DC 48V |
| Rated Power Output | 350W (36V) / 500W (48V) |
| Motor Architecture | Brushless Non-Gear Direct-Drive Hub Motor |
| Maximum Speed | 36V: Up to 30 km/h (19 mph) | 48V: Up to 35–40 km/h (22–25 mph) |
| Wheel Diameter | 12 Inch (Cast Aluminum Alloy Spokeless Rim) |
| Rear Fork Dropout Spacing | 125 mm (Overall Axle Length: 175 mm) |
| Axle Specifications | M12-1.25 Thread with 10mm Machined Anti-Spin Flats |
| Brake Compatibility | Standard 6-bolt Disc Brake (6× M5 holes, 44mm BCD) |
| Tire Options | With Pneumatic Tire (approx. 12.5×2.25) or Bare Rim without Tire |
| Wiring Leads | 3-Phase Power Lines + 5/6-Pin Hall Sensor Connector |
| Vehicle Compatibility | Mini Harley Scooters, Folding Electric Bikes, Seated E-Scooters, DIY Trikes |


Wiring & Controller Compatibility
The motor cable exits securely through the axle end with a protective rubber strain-relief boot. It features standard brushless phase leads (Yellow, Green, Blue) and a dedicated multi-pin Hall sensor plug, making it compatible with universal brushless motor controllers (compatible with standard 36V 15A–20A or 48V 20A–25A controllers).



Package Contents Checklist
- ✔ 1× 12-Inch Rear Hub Motor Wheel: (Selected 36V 350W or 48V 500W model).
- ✔ Tire Assembly (When 'With Tyre' option selected): Pre-installed pneumatic tire with inner tube and angled air valve.
- ✔ Axle Fasteners: Heavy-duty M12 axle nuts, locking washers, and protective rubber/chrome caps.
- ✔ Integrated Wiring Harness: Attached phase wires and Hall sensor cable.
Notice: Motor controller, battery, throttle, and brake levers are sold separately unless ordered as part of a complete system kit.
Frequently Asked Questions (FAQ)
Q: What vehicles does this 12-inch hub motor fit?
A: It is designed specifically for seated micro electric scooters, compact folding electric bicycles (such as mini Harley style frames, DYU, Fiido, and similar models), and custom DIY drift trikes or karts with 125 mm rear dropout spacing.
Q: Should I choose the 36V 350W or 48V 500W model?
A: Choose the voltage that matches your existing battery pack and controller. The 36V 350W version offers smooth speeds up to 30 km/h and longer range per amp-hour. The 48V 500W version provides greater top speed (up to 35–40 km/h) and stronger torque for riders tackling steeper inclines.
Q: Can I mount my existing disc brake rotor to this motor?
A: Yes! The hub features the international standard 6-bolt rotor pattern (44 mm Bolt Circle Diameter, M5 threads). Simply bolt on your 120mm, 140mm, or 160mm disc brake rotor using the standard screws.
Q: What size tire fits if I purchase the 'Without Tyre' version?
A: The rim fits standard 12-inch and 12.5-inch pneumatic or solid tires, such as 12 1/2 × 2 1/4 (12.5 × 2.25) or 12 × 2.125 tire sizes commonly found on folding e-bikes and seated scooters.
Q: What warranty and transit protection are included?
A: E Smart Way covers the motor with a 1-year manufacturer warranty and provides full shipping transit protection. Every motor is bench-tested before dispatch.
International Shipping & Customs Notice
Free Global Shipping: Each motor wheel is packed securely with axle protection and thoroughly tested prior to shipment. Tracking information is automatically provided once your order departs.
Customs & Import Duties: Depending on local destination customs laws, international packages may be subject to import VAT or customs clearance charges. As standard in international trade, these charges are assessed by your country's customs authority and remain the buyer's responsibility.
Smooth Clearance: Please verify your phone number and delivery address at checkout to ensure seamless communication with local courier services during customs clearance.