Dynamic Performance

In the last issue we gave a detailed appearance introduc-tion of SUR-RON’sLight Bee, from which we can see that it is a very playable product. In this issue, we are looking at the dynamic performance of the bike.

The ride started from the urban road. Compared with scooter motorcycles and most electric scooters, Light Bee has a light-body and high center of gravity, feeling as light as a mountain bike, but when youswitch it on you immediately feel a com-pletely different model from a mountain bike.

The physical characteristics of the motor enable it to start extremely fast, but the factory’s speed limit is 20km/h. The speed increase from 0 to 20km/h is slow, which takes a little more than 2 seconds. After decoding, the fastest speed can be higher than 70km/h. With 100% electric power, 0-70km/h acceleration only takes 4 seconds, during which 0-25km/h is just the moment when the front wheel is lifted. When the battery power is lower than 80%, the starting torque reduc-es, and the acceleration at the rear phase becomes weaker. But even if it goes weaker, its acceleration is faster than all electric motorcycles we have ridden. In this regard, maybe only SUR-RON’s White Ghost can be its rival.

Since its drag distance is almost the same as a bicycle, the handlebar is sensitive—applying a little force on the handle-bar could change the riding direction, which feels like riding a racing motorcycle. The body response is fast with a short wheelbase.

The short wheelbase is a double-edged sword on the bike: the bike is extremely flexible at low speed—while riding around piles, it is easy to ride through the piles and barrels with the same length of the bike body;the dis-advantage of short wheelbase lies in the stability ata higher speed—when the speed exceeds 40km/h, the bike body feels floating,and the handlebar feels increasinglyunstable as the speed further increases, which requires more force from both hands to control the steering. Although there are some unstable factors at the handlebar, we do not have to worry about that on thebumpy roads.The front and rear shock absorbers cansufficiently filter the bumpy feeling. The handlebar and the body almost feel no vibration, and the in-fluence on the control is not big, even feeling like riding on a flat ground.

This also increases the playability of riding on the road. You can ride it onto an unsealed road when you feel like to have an off-road riding  experience.
Although it has enough flexibility and playability in cities, there are some disadvantages. It uses the structure of a bicycle, without the leg protection as on a scooter and no engine heating, therefore, your legs are completely ex-posed in the wind when riding it in the winter. You will feel extremely cold without knee pads.

The seat is not as wide as that of a motorcycle, nor soft enough, and the upper body posture leans forward slightly. Riding for about 10 kilometers, you will feel slight pain on the hip and waist. However, the saddle is much more com-fortable than that on a bicycle.

The performance of Light Bee in the city justifies its name, light and flexible, like a fish in water. With Light Bee, com-muting riders can start more riding routes and modes, making the boring way-to/from-workmore interesting.

While, urban ridingcannot make most fun out of this off-road bike, so next time we will ride it to where it belongs and see how it performs on mountain and cross-country roads.（Source: WeChat: ZIYOUJIXIE）