Comparison Kugoo Kirin M4 vs Crosser E9 Pro MAX Air

The maximum weight of the rider that the design of the scooter can withstand without breakdowns and accidents. This moment is partly determined by the age group, and mainly by the materials used in the frame. Note that manufacturers can indicate the maximum load for perfect conditions - when the scooter rides on a perfectly flat surface or even stands still. Therefore, it is worth choosing a model for this parameter with a certain margin. And even more so, you should not exceed the weight indicated in the characteristics - even if the scooter does not break down immediately, this can happen at any time after, which is fraught with accidents and injuries.

The power of the motor installed in the electric scooter. In models with two motors (one per wheel), their total power is usually indicated.

A more powerful motor, on the one hand, has a positive effect on the speed and acceleration characteristics; on the other hand, it affects the cost of the device and requires more capacious batteries, which affect both the price and weight. In addition, at acceleration and low speeds, the scooter can be “helped” by pushing off with your foot. Therefore, in most modern models, the motor power is low — most often in range of 250 W, 300 W, 350 W. Power of 500 W is considered quite high, it allows you to reach speeds of 40 km/h and even higher. In the most advanced models, power is already measured in kilowatts, and the maximum speed can exceed 80 km/h; however, such "monsters" cost accordingly.

However, power also affects the ability to drive a vehicle, because depending on the country, various traffic rules are provided for driving a scooter.

A high top speed gives you more riding options and reduces travel time. However, it requires powerful motors and capacious batteries, which affects the price and weight of the scooter. In addition, the faster the scooter, the more careful you need to be when driving. Therefore, most of the electric scooters have a speed of 25 km / h or a little more - 30 km / h.

The number of speed modes in the electric scooter. By switching between them, the rider has the right to choose the most comfortable pace of the trip and change the upper speed limit bar.

The maximum climbing angle that an electric scooter can overcome on engine power alone, without the help of legs. Models with engines of the same power may differ in this indicator (due to the difference in torque and wheel size).

Note that in the specifications the angle is usually indicated in degrees, while on road signs it is given as a percentage (1% corresponds to a rise of 1 m for every 100 m of horizontal movement). However, this moment is not particularly critical: if you often have to overcome a certain hill, you can clarify its slope by converting percentages into degrees (and vice versa) according to special tables. In addition, if the angle turns out to be too large, nothing prevents you from helping the scooter with your foot, in extreme cases, to overcome the climb on foot.

The type of drive in the design of the scooter determines to which wheels the traction from the electric motor is transmitted.

- Front. The drive to the front wheel pulls the entire electric scooter. It provides improved stability on the road, minimizes the likelihood of skidding in corners, and guarantees a soft start and smooth acceleration. On the other hand, the electric motor at the front increases the weight of the wheel assembly and increases the effort when turning the handlebar.

- Rear. Rear-wheel drive electric scooters are not as stable on the road as front-wheel drive models. However, they are more frisky, demonstrate dynamic acceleration and easily conquer hills.

- All-wheel. Scooters with all-wheel drive combine all the positive qualities of front- and rear-wheel drive models in one package. They are also best suited for off-road driving — the all-wheel drive chassis does not care about pits and steep hills, other road irregularities, or mud deposits on the road.

Among the various types of brakes in scooters, you can find rim, disc, drum, electric. There are also models without a front brake.

- Rim. The rim brake is considered the simplest type of braking system. Such brakes provide a smooth deceleration and a complete stop of the scooter at an average speed. The stopping distance is usually medium or long. The rim brake is represented by pads, which, using a special mechanism, are pressed against the wheel rim. The pads themselves are driven by a lever, which is placed on the handlebar. Among the advantages of a rim brake are low price, and simple design. And drawbacks are fairly quick wear of the pads and the need to adjust the brakes as the friction linings wear out. Additionally, when using a scooter with a rim brake, be aware that the pads become less grippy if the rim is wet. In rainy, cloudy and slushy weather, the rim brake cannot be relied upon.

— Disk. Disc brakes are considered more advanced than rim brakes. The disc brake allows the scooter to stop quickly enough, and the braking distance itself can be either minimal or medium. Such brakes are represented by a friction clutch that acts on a small-diameter disc. The disc is attached to the wheel axle. The clutch is pressed against the brake disc with a sufficiently large force, which allows the disc brakes to b...e effective even when wet on the clutch. The disc brake is controlled by a lever that is placed on the handlebar. The advantages of a disc brake for a scooter are reliability, durability and the ability to stop quickly. Among the shortcomings, we highlight the high price and the need to adjust as the friction clutch wears out.

- Drum. Drum brakes slow down well and provide a fairly quick stop. In terms of efficiency, the drum brake for a scooter is between the rim and disc brake systems. The drum brake uses pads that are located inside the rim. In this case, the friction plates act on the inside of the rim. The brake with a drum device has many advantages: a large friction contact surface, moisture protection, reliability and durability. Among the shortcomings can be noted: the use of massive wheels, the complexity of service maintenance, and the need for periodic adjustment.

- Electric — braking with the help of recuperation. In this case, the deceleration and stop are produced by the electric motor itself, by reducing the speed. Usually, the electric brake provides a soft and smooth stop. As a rule, the electric brake acts as an auxiliary brake system. Also, advanced scooters often use a recuperative electric brake. In this case, when the speed is slowed down, energy is recovered, which allows you to recharge the battery pack.

- No brake. The front wheel is not equipped with a brake system. The braking can only be provided at the rear.

Possibility of electric scooter operation in recuperation mode. In this mode, the direction of the current starts “in the opposite direction”: the electric motors in the wheels work like generators, generating electricity and recharging the battery. In this case, the speed must be maintained either due to repulsion from the ground, or due to coasting from a hill. Properly using recuperation, you can significantly increase the power reserve: for example, it is good to turn on this mode on long descents or on long, flat sections of the road where it is easy to drive in the usual way, without using electric motors.

Battery capacity installed in the electric scooter.

Theoretically, a higher battery capacity allows for a longer range, but in fact, not everything is so clear. Firstly, motors of even the same power can differ in efficiency; secondly, the actual amount of energy stored in the battery depends not only on the capacity in amp-hours but also on the voltage in volts. So this parameter is secondary, and when choosing, it is worth focusing not so much on the battery capacity, but on the directly claimed range. You can compare capacity only for models with similar characteristics and the same supply voltage.