QS273 stands out as a remarkable offering in the dynamic world of electric bike motors, packing a punch with its high – end specifications and versatile design.
Engineered by QS Motor, a well – respected name in the industry, the QS273 is designed to meet the diverse needs of electric bike enthusiasts, from casual riders to professional racers.
The QS273 features a BLDC (Brushless Direct Current) Outer Rotor In – Wheel Hub Motor with Hall Sensor. This type of motor is renowned for its efficiency, reliability, and long – lasting performance.
The brushless design reduces friction, minimizing wear and tear, and eliminating the need for frequent maintenance. The inclusion of Hall sensors ensures precise control over the motor’s operation, enabling smooth acceleration and deceleration.
The motor has a non – integrated rim design with 36 spoke holes, which provides flexibility when it comes to choosing the right rim for different applications. It can match various rim sizes, including 24 – inch and 26 – inch E – Bike Wheels, as well as 17 – inch, 18 – inch, and 19 – inch moped wheels.
This wide range of compatibility makes the QS273 suitable for a variety of electric bike models, from mountain bikes to city commuters.
One of the most impressive aspects of the QS273 is its power output. With a rated power of 8000W, this motor delivers substantial power to propel electric bikes to high speeds.
The rated voltage is 72V, but it also offers optional voltage ranges from 48V to 96V, providing users with the flexibility to customize the power setup according to their specific requirements.
The motor can achieve a default speed of 105KPH, and it has an optional speed range from 24KPH to 120KPH. This wide speed range makes it suitable for different riding scenarios, whether it’s a leisurely ride through the city or a high – speed dash on open roads.
The maximum torque of ≥350N.m ensures that the motor can handle steep inclines and heavy loads with ease.
In terms of efficiency, the QS273 shines with a maximum efficiency of 86 – 91%. This high efficiency means that a large proportion of the electrical energy is converted into mechanical energy, resulting in longer battery life and more efficient operation.
The peak input current is 192.4A (200A peak, 300A in a few seconds), and the peak phase current is 550A (600A in a few seconds), which further emphasizes the motor’s ability to deliver high – power bursts when needed.
The QS273 is built to last. The stator is made of aluminum core, which helps in heat dissipation and ensures the motor can operate at optimal temperatures even under heavy loads. The magnet height of 50mm and 16 pole pairs contribute to the motor’s strong magnetic field, enhancing its performance.
The motor comes with a thermal probe (KTY83/122 as default, optional), which monitors the temperature and helps prevent overheating. The working temperature range is 70 – 120°C, with a peak temperature of 150°C. This thermal protection mechanism ensures the motor’s longevity and reliability.
The QS273 also features a bike disc brake with a PCD3*80mm (as default) brake type, providing reliable stopping power. The dropout is 200mm, and the dual Hall sensors come with waterproof connectors, making the motor suitable for use in various weather conditions.
The waterproof grade of IP54 offers protection against dust and water splashes, adding to the motor’s durability.
The high – power output and wide speed range of QS273 8000 watt motor make it ideal for off – road adventures, where you need the extra torque to navigate rough terrains. For city commuting, the motor’s efficiency and smooth operation ensure a comfortable and hassle – free ride.
