3. Guide for Safe Riding- 16 - Wear an examined helmet that is suitable for your head form, equipped with a belt and able to protect the back of your headwith its belt fastened whenever you ride Ninebot. The rider can also wear gloves, eye equipment, waist support, knee cap andother protecting equipment based on the riding conditions and past experiences. Do not ride in poor condition, cannot follow the indications or warnings in this manual, or have just taken alcohol or drug. Get off Ninebot and charge it for safety in the case of low power, successive warning and limit speed. Please place the goods you carry in the front or the side storage cases or in your backpack instead of placing it on the footmat. The balance of Ninebot will be influenced if the operation bar bears the weight of more than 5 kilograms. Please make sure the Ninebot is switched off before carrying it, or otherwise injury may be incurred by the quick rotation ofthe wheels. It is appropriately suggested that two men move the Ninebot in joint effort. Do not lift the Ninebot by the fender,because your finger may be clipped between the wheel and the fender. Please check whether there is any loose screw or damaged part before each ride. Do not power-on Ninebot until all faults areeliminated. Carry out regular maintenance over your Ninebot in accordance with Chapter 7 of this manual.3.5 Intelligent safety warning/automatic protectionIn the following cases, Ninebot will limit its speed automatically, namely limit the maximum speed to a range that will keep you safe: Advancing in over speed When riding Ninebot in excessive speed (4~12km/h in the limit speed mode, and 18~22km/h inthe balance mode), the steering bar of Ninebot would generate pushback force to push the rider in the backward direction soas to stop Ninebot from accelerating. This means the limit speed mechanism of Ninebot is triggered because you are ridingtoo fast. Now please adjust your body to keep at least a fist’s distance from the operation bar. Or Ninebot may lose balanceand fall down if you keeps pressing the operation bar or leaning your body against it. Overloading or staying on a slope for long time The intelligent safe warning will be triggered and the foot mat will reclineto remind the rider to get off when the loading of Ninebot surpasses the designed safety value for a certain period. It mayhappen in the following cases: staying at the steep slope/the deep pit, overweight of rider or staying on the slope for a longtime result in enduring overloading Ninebot. At this moment, the rider should get off and push Ninebot ahead with theassistant power. Or the rider may fall down if he still stays on Ninebot when it proceeds to the stand-by mode after 5 seconds. Low battery power When the battery voltage is less than 40%, the maximum speed in the balance mode will decrease, that is,Ninebot will limit the speed before it reaches 20km/h. Typically, the maximum speed will be about 14km/h if there is about30% battery power remained.