Electric vehicle owners often underestimate the importance of proper tire pressure, considering it a secondary parameter. However, it is the number of atmospheres in tires that directly determine safety, range and driving comfort. For Xiaomi’s technology, which is famous for its energy efficiency, this indicator becomes a critical factor in operation.
Insufficient pressure leads to rapid battery discharge and overheating of the controller, and excessive pressure leads to reduced traction and the risk of camera failure. In this article, we will discuss in detail how much atmospheres to pump into different models of scooters, how to measure the performance correctly and avoid common errors in chassis maintenance.
Why tire pressure is critical for Xiaomi
Xiaomi M365 electric scooters and their modifications are designed with minimum rolling resistance. Engineers have calculated the optimal parameters for which the engine operates in the most efficient mode. If you ignore these standards, you significantly reduce battery life and increase the load on the bearings.
Too soft wheels create an anchor effect, and the engine has to expend additional energy to overcome the resistance of the deformed rubber, which not only reduces the range by 15-20%, but also causes the engine windings to overheat when you ride on a long slide.
⚠️ Attention: Riding on flat tires can lead to a pinched camera between the rim and the tire, which is guaranteed to cause a rupture and the need to replace consumables.
And then the right kind of punishment affects the handling, the hard wheel is better at keeping the trajectory, but it transmits all the vibrations to the frame and the rider, the soft wheel cushions the bumps, but it makes the steering wheel wady and increases the braking distance, and balancing these parameters is the key to driving safely.
Recommended values for different models
Xiaomi’s scooters range includes several generations, and while the wheel designs are similar, the recommendations may vary slightly depending on the weight of the rider and operating conditions. The standard value given in the instructions for the M365, Pro, 1S and Essential is between 300 and 400 kPa.
For the convenience of users, we have translated technical values into more familiar units of measurement. Most modern pressure gauges show pressure in bars or atmospheres (Atm), which are almost equal in everyday use.
| Model scooter | Pressure (kPa) | Pressure (Bar/Atm) | Pressure (PSI) |
|---|---|---|---|
| Xiaomi M365 | 300 - 400 | 3.0 - 4.0 | 45 - 55 |
| Xiaomi M365 Pro / Pro 2 | 350 - 450 | 3.5 - 4.5 | 50 - 60 |
| Xiaomi 1S / Essential | 300 - 400 | 3.0 - 4.0 | 45 - 55 |
| Xiaomi Pro 2 Mercedes | 350 - 450 | 3.5 - 4.5 | 50 - 60 |
Note that the PSI values (pound force per square inch) are often used on imported pumps. If your gauge shows these numbers, focus on the 50-60 PSI range for heavy models. This will provide the necessary stiffness for the weight of an adult rider.
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Use a pump with a digital pressure gauge, as hand gauges often have a high error in the area of 3-4 atmospheres.
Effects of Rider Weight and Temperature
The factory recommendations average the values, but the actual operation makes its own adjustments. The main factor to consider is the weight of the user. The heavier the rider, the higher the tire pressure should be to avoid the camera breaking into the wheel disc when hit by irregularities.
For people under 60 kg, the lower limit of the recommended range (about 3.0-3.2 atmospheres) is recommended, which will ensure better comfort and cushioning. Ryders weighing 90 kg and above are strongly advised to raise the pressure to 4.0-4.5 atmospheres.
- 🚲 Lightweight (up to 65 kg): 2.8 – 3.2 atm. Soft driving, good grip, but higher risk of breakdown on sharp stones.
- 🚲 Average weight (65-85 kilogram): 3.2 – 3.8 Optimal balance between comfort and coasting.
- 🚲 Weight (over 85 kg): 3.8 – 4.5 atm. Maximum camera protection, improved coast down, but tougher driving.
The physics says that when you heat up, the gas expands, and when you cool it shrinks, if you pump the wheels to 3.5 atmospheres in a warm apartment (+25°C) and then go out into the cold (-10°C), the pressure will drop by about 0.3-0.4 atmospheres.
⚠️ Warning: Do not pump the wheels in a warm room before going out in the heat. In the sun, pressure can rise to critical values, which will lead to the explosion of the camera.
Formula for calculating pressure by weight
How to measure and pump the wheels correctly
To service Xiaomi wheels, you will need a pump with a pressure gauge. The standard nipple on these scooters is labeled 8 1/2 x 2 and is Schrader type (automobile), but often located in a hard-to-reach place inside the disk.
The measurement and pumping process should be done on cold wheels, if you've just been riding, the air inside the tire has been heated by friction, and the pressure gauge will be overestimated, and let the scooter stand in the shade for at least 30 minutes before the test.
☑️ Wheel pumping algorithm
First, attach the pump and pump the wheel to a value slightly higher than the target (for example, to 4.2 atm, if you need 4.0). Then briefly press the air release valve to blow the excess to the desired mark, this technique helps to "align" the pressure throughout the volume of the chamber.
Common errors in service
Many users make common mistakes that negate all efforts to care for their equipment, one of the most common being the use of a low-quality tire sealant, which, although it seals small punctures, the fluid inside the chamber disrupts the wheel's balance and can cause the steering wheel to beat at high speeds.
Another mistake is to ignore the state of the nipple, and when pumped, the nipple cap must always be twisted, and it not only protects against dirt, but also serves as a secondary seal, and without the cap, the spool starts poisoning the air, and in a week the wheel can lower 0.5 atmospheres.
- 🔧 Use of powerful compressors: Station compressors at gas stations deliver air in jerks and can instantly tear apart the scooter's thin chamber. Use only manual or quiet electric pumps.
- 🔧 Lack of lubrication: When installing a new camera, always lubricate the inside of the tire with talc. This will prevent the rubber from friction against the rubber and prolong the life of the tire.
- 🔧 Eye check: Hand-wheel compression doesn't give an accurate result.The camera may seem stiff at 2.0 atm, but for Xiaomi, it's critically small.
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Regular pressure checks once a week extend the life of the battery by up to 30% and prevent sudden punctures.
Transition to tubeless tires or gel
Owners tired of frequent punctures often think about upgrading, and tubeless tires can be pumped to higher pressures without the risk of explosion, as the tire design is designed to retain air, but for the Xiaomi M365, this requires replacement of the discs or complex sealing of the regular ones.
A more affordable option is to pour the gel (anti-puncture) into the regular chambers. The gel tightens the holes from nails and screws up to 3-4 mm in diameter.
When using an anti-collar gel, the initial pressure should be set to 0.2-0.3 above the standard atmosphere, since the gel occupies part of the internal volume of the chamber, which compensates for the loss of space and will maintain the rigidity of the wheel.
Seasonal storage and conservation
If you plan to not use a scooter for a long time, for example, in winter, proper preparation of the wheels is mandatory. Do not leave the vehicle with pumped wheels in the cold without movement. Rubber blubbers, and temperature changes can lead to microcracks.
The optimum storage pressure is about 2.5 atmospheres, which will relieve the stress from the cord of the tire and the walls of the chamber, but will not allow the wheel to completely deform under the weight of the device itself, and once a month it is recommended to roll a scooter or at least turn the wheels.