Owners of popular electric vehicles often wonder what pressure should be in their tires. For Xiaomi scooters, this parameter is critical not only for driving comfort, but also for safety. An improperly inflated tire can cause a puncture, a reduced range or even a high-speed accident.
Many users mistakenly believe that the more the wheel is pumped, the better. However, this statement is only partly true. Too high pressure makes the trip extremely rigid, and too low leads to rapid battery discharge and camera wear. In this article, we will discuss the exact values in atmospheres (ATM) and pounds per square inch (PSI) for various models.
You need to check the condition of the wheels regularly, because the air tends to gradually come out even through the whole rubber, and it takes only a few minutes to control this parameter, but it significantly prolongs the life of your device, and let's figure out what standards are set by the manufacturer and how to properly observe them at home.
Factory standards and marking on the tire
The first place to look for pressure information is the sidewall of the tire itself, and Xiaomi engineers put the maximum values that rubber can withstand in the tire, but you have to understand the difference between the maximum pressure and the recommended operating value. You usually see a sign on the sidewall like a MAX PRESS 50 PSI or something like that.
For most models, such as the Mi Electric Scooter Pro 2 or 1S, the standard value is a range of 3.0 to 4.0 atmospheres (about 45-50 PSI). If you weigh more than 80-90 kilograms, it makes sense to adhere to the upper limit of this range, which will provide better roll-back and protect the rim from breaking in the event of unevenness.
It is important to note that the values may vary depending on the modification of the wheels. There are versions with pneumatic tires and tubeless versions that require more accurate compliance. Ignoring the marking can lead to the fact that when heated from friction against the road surface, the pressure inside will increase to critical values.
⚠️ Warning: Never pump tires above the value indicated on the sidewall (MAX PRESS). Exceeding this limit threatens to rupture the tire or camera, especially in hot weather.
Table of recommended pressure for different models
Different models of scooters have different engine weights and power, which directly affects wheel requirements. Heavy versions like the Xiaomi Pro 2 require more rigid pumping to compensate for the weight of the rider and the device itself. Lightweight models like the Essential can be slightly softer to improve grip.
Below is a detailed table to help you quickly navigate the numbers. Remember that 1 atmosphere (ATM) is approximately 1 Bar and 14.5 PSI. For accuracy, it is better to use a pump with a gauge showing PSI, as this is the international standard for the tire industry.
| Model scooter | Recommended pressure (PSI) | Atmospheric pressure (ATM) | Pressure in Bars (Bar) |
|---|---|---|---|
| Xiaomi Mi Scooter 1S | 45 - 50 PSI | 3.1 - 3.4 ATM | 3.1 - 3.4 Bar |
| Xiaomi Pro 2 / Pro 2+ | 45 - 50 PSI | 3.1 - 3.4 ATM | 3.1 - 3.4 Bar |
| Xiaomi Essential | 40 - 45 PSI | 2.7 - 3.1 ATM | 2.7 - 3.1 Bar |
| Xiaomi 365 (M365) | 45 - 50 PSI | 3.1 - 3.4 ATM | 3.1 - 3.4 Bar |
Using a pump with a digital display makes it much easier to control. Mechanical pressure gauges often have an error that can play a cruel joke when adjusting fine parameters. Electronic devices show the result instantly and allow you to stop the air supply automatically.
The effect of rider weight on wheel pumping
Driver weight is one of the key factors that is often overlooked: If you weigh 50 kilograms, the pressure of 50 PSI (3.4 ATM) can be excessive, leading to poor traction and discomfort, in which case you should focus on the lower end of the recommended range.
For riders over 90-100 kilograms, the opposite is true, and underpressure will cause the tire to get badly under load, which creates the risk of what's called a snake bite, which is a camera breaking into the rim of the wheel when it hits a rock or curb, and in such cases the pressure should be closer to maximum.
Also consider whether you are carrying a backpack with a laptop or heavy bags. The extra weight requires a pressure adjustment in the big way. If you plan a long trip with a load, pump the wheels additionally to 0.2-0.3 atmospheres.
- 🎒 Light rider (do) 60 Kg: Recommended 40-43 PSI comfortably.
- 🚴 Average weight (60-85 Kg: Optimal holding 45-48 PSI.
- 💪 Heavy rider (85)+ Kg: You need to pump up to 50 PSI (maximum).
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Check tire pressure only on a cold scooter. After an active ride, the air inside warms and expands, showing falsely high values on the gauge.
Seasonal Features: Winter and Summer
The ambient temperature directly affects the volume of air inside the chamber, and the laws of physics say that when you heat it expands, and when you cool it shrinks, which means that tire pressure will drop in winter and it will rise in summer.
On a hot summer day, when the asphalt is hot, internal pressure can grow. 10-15%. If you pump the wheels to their maximum in a cool garage, they can become dangerous in the sun, so in the summer it is better to stick to the average value, leaving a small margin for expansion.
In winter, the opposite is true: in the cold, the air shrinks and the tires become soft, which increases the contact spot, which is kind of good for grip, but drastically reduces the range and increases the risk of puncture, and in winter, you need to pump the wheels more often, bringing them to the upper limit of normal.
⚠️ Warning: A sudden temperature drop (e.g., leaving a warm room for frost) can cause an instant drop in pressure. Always carry out the final check outside before traveling.
How to measure and pump tires correctly
You'll need a pressure pump to do the procedure. Many owners use battery-connected car compressors or compact electric pumps that you can carry around. Mechanical foot pumps are also good, but require more effort to reach 4-5 atmospheres.
The pumping process is simple: remove the cap from the nipple, press the pump hose tightly and start the air supply. Periodically stop and check the gauge. Remember to twist the cap back to protect the nipple from dust and moisture.
☑️ Checklist for tyre maintenance
If you're using an electric compressor, make sure it's connected to a proper power source. Some powerful compressors can quickly discharge the car battery if the car's engine is turned off. For scooters, portable models with their own battery are most convenient.
What to do if the air is coming out quickly?
Effect of pressure on range and dynamics
Properly inflated tires are the key to the manufacturer's stated range. The soft wheel has greater rolling resistance. Xiaomi's engine has to expend more energy to turn it around, leading to accelerated battery discharge.
On the other hand, a pumped wheel improves coasting, but it impairs cushioning, and you'll feel every crack on the pavement, and vibrations will be transmitted to the frame and electronics, which can weaken the fasteners and contacts inside the device over time.
Optimal pressure balances speed, range and comfort, and regular maintenance of the wheels allows you to maintain the declared performance of speed and acceleration dynamics throughout the life of the device.
- 🔋 Power reserve: At low pressure, it can fall on 15-20%.
- 🚀 Maximum speed: Slightly increases at high pressure.
- 🛡️ Safety: Optimal pressure ensures predictable braking.
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Regular pressure checks (every 1-2 weeks) are the easiest way to extend the life of batteries and avoid costly punctures.
Frequent questions and problems with pumping
Often users experience the wheel running down after pumping, which may be due to a poor-quality nipple, microcracks in rubber, or temperature changes, and it is important to distinguish between natural air loss (normally about 0.1 ATM per week) and rapid etching.
Another problem is the difficulty of connecting the pump. Nipples on Xiaomi scooters are often buried deep in the rim. Use special extension nozzles or curved heads to tightly lock the pump hose without losing air when docking.
Some riders are experimenting with injecting a gel or sealant into the chamber to protect against puncture, and it does work, but it increases the weight of the wheel and can upset the balance, causing a high-speed beat, and it's up to each owner to decide whether to do it.
⚠️ Warning: When using sealants, be sure to wash the nipple thoroughly after the procedure, otherwise the dried composition will block the valve and you will not be able to measure the pressure next time.