EV motorcycle conversion kit

ev motorcycle conversion kit QS273 5000W 72V motor with EM 200 Motor controller Votol controller, Power Up Your Ride with 100KPH Performance.

For enthusiasts looking to convert a traditional motorcycle to electric or build a high-performance electric motorcycle from scratch, the search for a reliable, all-in-one solution ends here. 

SiAECOSYS 17×3.5inch 5000W 72V 100kph Hub Motor with EM200SP Controller Power Train Kits—centered on the robust QS273 hub motor—stands out as a top-tier electric motorcycle conversion kit that blends power, efficiency, and ease of use. 

Whether you’re searching for an “EV motorcycle conversion kit,” “electric motorcycle kit,” or “convert motorcycle to electric kit,” this product checks every box for performance and practicality.

The star of this electric motorcycle conversion kit is the QS273-based 5000W V4 electric motorcycle hub motor. Engineered for speed and reliability, it pairs with a 72V system to hit a peak speed of 100km/h—perfect for riders who crave the excitement of traditional motorcycles without the fossil fuel footprint. 

Even at this high performance, the motor maintains an impressive efficiency rating of 85~92%, ensuring maximum energy use from your battery and longer rides between charges.

Designed for real-world use, the QS273 hub motor excels in tough conditions too: it can handle a total load of up to 150kg (motorcycle) + 2×80kg (riders) and climb 15-degree slopes effortlessly. This means whether you’re commuting on city streets or tackling gentle hills, the motor delivers consistent power without strain.

What makes this convert motorcycle to electric kit a game-changer is its completeness—you won’t need to source additional components to finish your conversion. Each kit includes:
1× QS273 17×3.5inch 5000W V4 Hub Motor: The heart of the system, built to simplify installation by eliminating the need for a gearbox, transmission shaft, or clutch—saving space and reducing mechanical complexity.

1× EM 200 Sine Wave Controller with CAN-BUS: Ensures smooth power delivery and seamless communication with other components. Its sine wave design minimizes noise and enhances ride comfort, while the standard CAN-BUS system supports smart features (e.g., battery monitoring).

1× DKD LCD Speedometer: Displays critical info like gear (D/N/R/P/S), battery current, and speed. For users without a CAN-BUS battery, a LIN communication version is available to avoid false low-battery alerts.

1× Z6 Throttle with Combination Switch: A durable, IPX6-waterproof throttle with essential controls: reverse, parking (throttle on/off), 3-speed gear selection, S/boost mode, light, and horn. It even works seamlessly with VOTOL controllers, adding flexibility for future upgrades.

If needed, we can also provide supporting products such as matching complete vehicle wire harness, disc brake assemby, battery, and charger.

Installing this electric motorcycle kit is straightforward, even for those new to conversions. The QS273 hub motor is designed for rear installation, which frees up valuable space for a larger battery (we recommend a 72V60Ah battery for optimal performance). This space-saving design is a huge plus for motorcycle conversions, where every inch of space counts.

The kit also supports regenerative braking—a feature that recovers energy during deceleration, extending your battery life and reducing wear on traditional brakes. For tire compatibility, it works with 130/70-17 tires, a common size for many motorcycles, making it easy to integrate into your existing or planned build.

Ready to turn your motorcycle into a high-speed electric ride? QS273 5000W electric motorcycle conversion kit is your ticket to emission-free thrills.