15000W Rear Wheel Electric Bike Hub Motor Kit for Stealth Bomber Bike

Product Overview

The 15000W Rear Wheel Electric Bike Hub Motor Kit is an extreme-performance direct-drive conversion package engineered specifically for Stealth Bomber steel e-bike frames and custom electric dirt bike builds. Designed to handle massive continuous thermal loads on 72V high-discharge battery systems, this heavy-duty brushless gearless motor delivers top speeds of 75–80+ mph (120–130+ km/h) and up to 180 N.m of peak torque. Complete with a 150mm/175mm rear dropout hub, 10G heavy-duty stainless steel spokes, a 19" or 21" DOT-rated motorcycle rim, and compatibility with high-current Sabvoton and Fardriver controllers, this kit is the ultimate power upgrade for high-wattage off-road builds.

Technical Specifications

Key Features & Performance Highlights

• Built for Stealth Bomber Swingarms: Engineered with wide 150mm (or 175mm) axle dropout spacing to bolt directly into standard Stealth Bomber steel frames, Enduro EB-X frames, and heavy dirt bike swingarms.

• Extreme Torque & Thermal Management: Built using high-grade neodymium magnets and 180°C thermal-resistant copper windings to maintain peak output during high-speed off-road riding without overheating.

• Heavy-Duty Motorcycle Rim & Spokes: Pre-laced into thick 19-inch or 21-inch DOT-rated motorcycle rims using heavy 10G stainless steel spokes to handle extreme acceleration, jumps, and off-road trail forces.

• Dual Hall Sensor Protection: Integrated with primary and backup dual Hall sensors inside the stator for fail-safe reliability on the trail.

• High-Current Sine-Wave Controller Support: Works seamlessly with high-amperage Sabvoton and Fardriver controllers featuring Bluetooth app programmability, flux weakening, and regenerative braking. The controller can be programmed by the PC and bluetooth, which is compatible with Android and ISO system

What’s Included in the Motor Kit

• 1x 15000W Heavy-Duty QS 205 2.5T Rear Hub Motor (Pre-laced in 19", 21", or 26" x 4.0 Rim).

• 1x 200A Sabvoton programmable sine-wave controller.

• 16T single speed gear.

• TFT display with 3.5" high contrast color screen.

• USB Connector which is connected with PC;

• Bluetooth; 

• Wuxing Brand Twist or Thumb Throttle.

• Key to turn on ebike or TFT display.

• Headlight & taillight with signal turning (Optional);

• Anti-theft system(Optional). The anti-theft system comes with remote control;

• 72V56AH Li-on battery with 120A BMS (optional);

• 72V60AH Li-on battery with 120A BMS(optional)

• 72V70AH Li-on battery with 120A BMS (optional).

Frequently Asked Questions (FAQ)

Q: Will this 15000W rear hub motor fit a standard bicycle frame?

A: No. This 15000W motor requires a 150mm or 175mm rear dropout width found on Stealth Bomber steel frames or custom electric motorcycle swingarms. Standard bicycle frames (typically 135mm rear dropouts) are not wide or strong enough for this axle size and torque output.

Q: What battery specs are required to run a 15000W Stealth Bomber motor?

A: A 15000W motor requires a high-discharge 72V Lithium-ion battery with a Battery Management System (BMS) capable of handling a minimum of 150A continuous discharge current.

Q: Is a 19-inch motorcycle rim better than a 26-inch bicycle rim for a 15000W build?

A: Yes. At 15000W, a 19-inch or 21-inch motorcycle rim with 10G spokes is strongly recommended. Motorcycle rims offer far greater structural integrity, sidewall stability, and tire durability at speeds over 60 mph compared to bicycle rims.

Q: How Far Can the Kit Travel on One Charge?

A: It depends on the battery, also other factors such as terrain, rider weight, and riding style. However, with a 72V 56Ah battery, you can expect a good range about 80km, 90-100km for 72v 60ah battery and 100-120km for 72v 70ah battery.

Q: Is a 15000W Stealth Bomber e-bike street legal?

A: No. Motors producing 15000W and speeds above 80 mph exceed standard e-bike Class 1, 2, and 3 power regulations (which cap power at 750W / 20–28 mph). This conversion kit is strictly intended for off-road trails, private property, or closed-course racing.

Q: Where does the kit ship from, and how long does delivery take?

A: The kit ships from China by air, sea, or railway, depending on the selected shipping method.

• Air: Approximately 10–15 business days.

• Sea to the US: Approximately 28–30 business days.

• Railway to the UK and EU: Approximately 30–35 business days.

These are estimated transit times and may vary because of customs processing, carrier schedules, and destination.

For details, see our Shipping Policy.

Q: Will I need to pay import taxes?

A: Import duties, taxes, and customs charges depend on the destination country, shipment method, order details, and applicable regulations. Charges may apply even where they are not normally expected.

To US, UK, EU, AU, normally no import tax. But to New Zealand, Switzerland, Norway, Mexico, Argentina and Brazil, it normally need to pay import tax. For more information about the import tax, please check our shipment & delivery and customs & import tax. before ordering.

Component Specifications: This e-bike conversion kit features original Quanshen QS motor, Sabvoton controller, Wuxing Throttle, UKC TFT Display. All featured third-party components are authentic parts sourced for assembly. Brand names belong to their respective owners and are used here solely to describe the installed components.

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