Electric motor for Mxus XF40C 30H 1500W (12x5) Rear 36/48V cassette bike

8x8 - Engine with reduced top speed but increased efficiency. It has high torque, provides the most efficient driving with the lowest energy consumption. Suitable for those for whom top speed is not important (or even not wanted), but who see strength (torque) as the main asset of their design. Best found in structures built with strength, efficiency and range in mind.

10x6 - Intermediate motor, has higher top speed at the expense of lower to torque (force). Provides a faster ride for those who appreciate high speed. It is weaker, provides a few % less range, will perform worse under loaded mountain driving. This model is of particular interest in trekking, gravel, expedition, road, cross and other inherently flat designs.

12x5 - The engine with the highest top speed being also the weakest of the 30H models. This is the drive most often used for bicycles with 20/24" wheels. The use of such a motor means that fairly small wheels can accelerate the structure (thanks to the high speed of the motor) to reasonable top speeds. This model of engine is usually not used in 26-28" wheels unless you are consciously building a structure that is only meant to accelerate to particularly high top speeds under ideal conditions on a flat road.

If you have plans to build a very powerful bicycle and anticipate using the above motor at maximum wattages continuously or plan to use it at wattages exceeding the above parameters (current, voltage, continuous and maximum wattages) then the motor temperature should be monitored to prevent overheating.

Each engine can be defined by 2 parameters. Speed and torque. Both of these parameters are reflected in these mysterious 2 digits. They denote the description of the internal structure of the engine. The first digit is the diameter of the winding wire. It directly affects the speed, that is, how many revolutions per minute the motor will accelerate to for every 1V of power supply. The second number is the number of windings, it tells you how much torque the engine has, that is, how much power it has when accelerating or going uphill.