Avinox's M2S and M2 motors are causing a stir in the e-bike industry, and for good reason. With a focus on power, efficiency, and innovation, these motors are set to redefine the e-MTB landscape. Let's dive into the details and explore why this is a game-changer.
Power and Efficiency
The M2S and M2 motors pack a serious punch, offering up to 1,300 W and 150 Nm of continuous power, and a staggering 1,500 W and 150 Nm in 30-second bursts. This is a significant leap from the industry standard of 85 Nm and 600 W, and even surpasses the legal limit for class-1 e-bikes in many regions. But it's not just about raw power; Avinox has also focused on efficiency.
By utilizing larger-diameter motor windings and flat wires in the M2S, they claim to have achieved an impressive 84.5% efficiency. This means that for every 1000 W of electrical power, the M2S motor can theoretically provide up to 845 W of assistance. While efficiency alone doesn't guarantee range, it's a crucial factor, and Avinox's motors seem to be delivering.
However, it's worth noting that efficiency drops at high power outputs. When the motor hits its maximum sustained mechanical power of 1300 W, the efficiency drops to 76.5%, and it further decreases to 75% in Boost mode. This is a trade-off that Avinox is willing to make for the extra power.
Noise and Drag Reduction
One of the standout features of the M2S and M2 motors is their focus on noise and drag reduction. The M2S uses a dual-gear meshing design to eliminate the clacking noise from reduction gears, while the M2 employs helical gears to minimize knocking sounds. This attention to detail ensures a smoother and quieter ride.
Additionally, Avinox has addressed pedaling drag by replacing high-resistance oil seals with low-resistance sealed bearings. This innovation reduces pedaling drag by 41% while maintaining protection, making the M2S and M2 motors even more efficient and user-friendly.
Battery and Display Innovations
Avinox has also introduced a new 700 Wh battery with a sleek cylindrical design, weighing 3.18 kg. This battery offers excellent energy density, outperforming their existing 600 Wh and 800 Wh options. The 700 Wh battery is a game-changer for brands seeking a slim downtube design.
Furthermore, Avinox has expanded its battery options with removable 600 Wh and 800 Wh batteries, providing flexibility for off-bike charging and travel. The 600 Wh battery can also be used as a range extender, adding valuable energy to compatible bikes. Avinox's charger options, including 4 Amps and 12 Amps, ensure fast and efficient charging.
The M2S and M2 motors come equipped with a 2-inch touchscreen display, which can import routes from third-party navigation apps like Komoot. This feature enhances the riding experience by providing turn-by-turn directions. Additionally, the display allows users to pair heart rate monitors and adjust assistance levels accordingly.
Initial Ride Impressions
The author, seb-stott, had the opportunity to ride the M2S motor on a Propain Ekano and an Atherton S.170E. While the motors' peak power and torque might seem excessive for most situations, the author was impressed by the system's refinement.
The power delivery is intuitive and easy to control, especially in Automatic mode, where the motor adjusts assistance based on the rider's power output and speed. The M2S motor is remarkably quiet, with only a subtle whir when producing close to its maximum power. The absence of clacking from internal gears is a welcome feature.
The author also noted the fast battery drain when using Trail or Turbo mode, which is expected given the powerful motor. However, the overall performance and efficiency of the M2S and M2 motors leave a lasting impression, making them a force to be reckoned with in the e-bike market.
Conclusion
Avinox's M2S and M2 motors are a testament to the company's commitment to innovation and performance. With their impressive power output, efficiency, and attention to detail, these motors are set to revolutionize the e-MTB world. As the e-bike market continues to evolve, Avinox is undoubtedly a brand to watch, offering a compelling alternative to established competitors.
