Electric vehicles inevitably wear out their supplies, and tires are no exception. If you notice that the tread has worn off to the indicators or the camera has started poisoning the air more often than usual, it's time to think about replacing. Owners of the popular Xiaomi Mijia equipment often face the need to maintain the front end, as it takes the main load when braking and bumping.
The replacement process does not require specialized service, as long as you have a basic set of tools and an understanding of the mechanism. However, rushing can damage electrical contacts or deform the disc. In this article, we will discuss in detail each step, from preparing the workplace to the final pressure check, so that your electric scooter again enjoys smooth running.
It is worth noting that the design of the wheels in different generations of devices can differ in the presence or absence of spokes, as well as the type of mounting of the engine. So before starting work, it is important to identify your model: Xiaomi Mi Electric Scooter 1S, Pro 2 or classic M365.
Tools and workplace preparation required
Quality repairs start with the right organization of space, you need a clean, well-lit surface where you can arrange the parts in order to remove them. Do not try to work on a weight or on a soft sofa, as this increases the risk of losing small screws and damage to the body.
The basic toolkit includes a set of hexagonal keys, with the most commonly used dimensions of 4 mm and 5 mm. Also, you will need mounting blades to work with rubber, a pump with a pressure gauge and possibly a hair dryer to warm the tire if it is "stuck" to the disc. To protect your hands from the sharp edges of the disk and dirt, it is better to use construction gloves.
⚠️ Warning: Before starting any work, be sure to turn off the electric scooter through the application or press the power button until completely turned off. Working with the connected battery when disassembling the motor wheel can lead to a short circuit.
If you're planning to change your camera, make sure the new part matches the dimensions of the old one. The standard for most models is 8.5 inches. Using cameras of the wrong size can cause them to wear out quickly or burst when pumped.
- 🛠️ Set of hexagonal keys (basic dimensions 4.5 mm)
- 🔧 Installation blades for tire removal
- 🎈 Pressure gauge pump
- 🧤 Building gloves to protect your hands
Dismantling the front wheel: step-by-step instructions
The process of removing the wheel begins with the removal of the protective elements and disconnecting the electrical circuits. In the Xiaomi M365 and Pro 2 models, access to the fasteners can be partially closed by wings or decorative linings. Carefully remove them to free access to the axle.
The next critical step is to turn off the wire from the motor wheel to the controller, usually inside the steering rack or at the bottom of the steering wheel, and to carefully pull the connector out, trying not to pull the wires themselves, so as not to damage the insulation or contacts.
☑️ Checklist before dismantling
Once the electric is turned off, you can start unscrewing the axle fasteners, which are usually two, and they're on opposite sides of the fork. Use a key of the appropriate size and twist them counterclockwise. If the bolts are stiff, you can drop some penetrating lubricant and wait a few minutes.
When the bolts are removed, the wheel should come out of the fork freely. However, it is often held by a tight fit of bearings or residual tire pressure. A slight sway from side to side will help to free the axle. Do not use excessive force so as not to damage the bearings.
Replacement of camera and tires: technical nuances
If you want to replace the camera, the first thing you need to do is to completely flush the air, press the spool and make sure the pressure inside has dropped to zero, and then you can start removing the tire from the disc, and you use mounting blades that are inserted between the side of the tire and the rim.
Carefully avoid damaging the camera when you remove it. Remove the old camera and replace it with a new one, slightly pumping it so it doesn't get pinched when you build it. Make sure the camera valve looks towards the hole in the disk.
Should I change the tyre with the camera?
When placing the tire back on the disc, it is important to monitor the uniformity of the board landing. Misalignment can cause the wheel to beat when moving or even a sudden rupture of the pressure chamber. After assembly, pump the wheel to the recommended value, which is usually 50 PSI (about 3.5 bar).
| Parameter | Value for M365/1S | Value for Pro 2 | Units of measurement |
|---|---|---|---|
| Wheel size | 8.5 inches | 8.5 inches | Inches. |
| Recommended pressure | 50 PSI | 50 PSI | PSI |
| Type of camera | With an L-type valve | With an L-type valve | Type |
| Maximum loading | 100 kg | 100 kg | Kilograms. |
Working with the electric part of the motor-wheel
When you change a wheel, you often have to work with the motor cable, so if you change the wheel assembly, you'll have to change the wiring from the old assembly to the new one, or you'll have to connect a new cable, and it's important to color-code the wires when you connect if you're using soldering, or just connect the connectors tightly.
Pay special attention to the removal of the wire from the hub. Xiaomi design uses a special rubber seal to prevent moisture from entering the engine. When dismantled, it is easy to damage, so check the integrity of the seal and replace it with a new one when you assemble it.
Incorrect connection can lead to a controller error or engine failure. After assembly, before putting the wheel in place, it is recommended to briefly turn on the scooter and check the engine's performance on weight. Light humming and rotation indicate the correct connection.
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Use a tape or shrinkage to further protect the exit point of the motor-wheel, even if the standard seal is intact, which will extend the life of the unit in rainy weather.
Assembly of the unit and installation of the wheel in place
The wheel is set up in reverse order. Insert the wheel axis into the fork seats, making sure that the current-removable contacts (if any on your model) match the return part. Then make the attachment bolts from your hand to check the positioning is correct.
The bolts should be tightened cross-to-cross, gradually increasing the force, which will ensure that the wheel fits evenly and eliminate distortions. The final tightening force should be sufficient to keep the wheel from dangling, but not excessive, so as not to break the thread in the aluminum fork.
After mechanical fixation, reconnect the electrical connector inside the steering column. Make sure the connector snaps before the characteristic click. Make sure the wire is not clamped and touches the moving parts of the steering gear.
- 🔩 Insert the wheel into the fork, combining the holes
- 🔧 Twisting the cross-axis bolts
- 🔌 Connect the motor-wheel connector
- ✅ Check the free rotation of the wheel
Performance check and test run
The final step is to test the assembly in action, turn on the scooter and scroll the wheel with your hand, it should rotate freely, without friction against the brake disc or body, and if you hear a grinding sound, check the position of the caliper or the axle tightening.
Take a short test ride at low speed, pay attention to vibrations, noises and brakes, if everything goes well, you can use the vehicle as normal, and check tire pressure regularly in the first week after you change.
A properly executed front wheel replacement will extend the life of your electric scooter and ensure safety of travel. Don't ignore signs of wear and service in a timely manner using quality components.
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The main secret of success is to take your time when working with electric connectors and carefully check the pressure in the tire after assembly.
⚠️ Attention: After the first trip (1-2 Be sure to check the tightening of the wheel axis bolts.A new wheel or camera can change the landing geometry, and the fastener may weaken.