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As Seen On Tv Qs 138 V4 90h 4000w Mid Drive Hub Motor For Motorcycles - High-power Magnet Motor With 1:2.35 Gear Ratio At A Low Price [ojHJT1IR]

$55.99 $179.99 -69%

QS 138 V4 90H 4000W Mid Drive Hub Motor The QS 138 V4 90H 4000W Mid Drive Hub Motor is the ultimate upgrade for your motorcycle, designed to deliver unparalleled power and efficiency. This high-powered magnet motor, with a 1:2.35 gear ratio, promise

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As Seen On Tv Qs 138 V4 90h 4000w Mid Drive Hub Motor For Motorcycles - High-power Magnet Motor With 1:2.35 Gear Ratio At A Low Price [ojHJT1IR]

QS 138 V4 90H 4000W Mid Drive Hub Motor

The QS 138 V4 90H 4000W Mid Drive Hub Motor is the ultimate upgrade for your motorcycle, designed to deliver unparalleled power and efficiency. This high-powered magnet motor, with a 1:2.35 gear ratio, promises a smooth and exhilarating ride on any terrain. With its robust 4000W rating and a maximum torque of 150N.m, this mid-drive motor is a game-changer for motorcycle enthusiasts seeking top performance.
  • Powerful Performance: Reach speeds of up to 100KPH with ease, thanks to the 4000W rated power and 72V rated voltage.
  • Efficient Gear Ratio: The 1:2.35 gear ratio ensures optimal power transfer and acceleration.

Technical Specifications

This mid-drive hub motor is equipped with a 90mm magnet height and 5 pole pairs, delivering exceptional torque and acceleration. The motor's speed of 4800RPM, combined with flux weakening at 7000RPM, guarantees a thrilling ride. The rated current of 60A and max bus current of 200A ensure efficient power delivery and reliable performance.
  • High-Torque Magnet: 90mm magnet height and 5 pole pairs for superior torque and acceleration.
  • Advanced Electronics: 60A rated current and 200A max bus current for optimal performance and reliability.

Applications and Benefits

Whether you're looking to upgrade your existing motorcycle or build your own custom ride, the QS 138 V4 90H 4000W Mid Drive Hub Motor is the perfect choice. It is ideal for motorcycle enthusiasts who demand high performance and efficiency. Experience the ultimate power and performance upgrade for your motorcycle, and take your rides to new heights.
  • Custom Motorcycle Builds: Perfect for customizing your motorcycle with top-of-the-line power.
  • Enhanced Riding Experience: Experience the thrill of high-speed, high-performance rides on any terrain.

What Our Customers Say

January 20, 2026

Absolutely no complaints!

A great gadget with a real, real, real quality feel.

- Trefor A..

January 20, 2026

Absolutely no complaints!

I'm very, very, very, very happy with my purchase.

- Iwan Z..

January 20, 2026

Absolutely no complaints!

I'm happy with this very, very, very nice item.

- Gwynedd A..

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