The operation of an electric vehicle inevitably confronts the owner with the need for maintenance, and the most common procedure is to replace the tire. Puncture on the rear wheel occurs statistically more often due to the greater weight load attributable to the rear axle of the rider. Unlike the front assembly, dismantling the rear wheel Xiaomi M365 or its modifications requires more careful preparation and understanding of the design of the motor wheel.
The process can be intimidating for a beginner, especially when it comes to removing the brake disc and working with electrical contacts. However, with the right set of tools and following a proven algorithm, this operation can be performed at home without going to a service center. It is important to understand that the quality of the assembly after maintenance directly affects the safety of the ride and the tightness of the entire electric system of the scooter.
In this article, we will discuss each step of the work in detail, from the choice of place and tools to the final run-in of the new rubber, and we will pay special attention to the nuances of working with the camera and the correct positioning of the nipple, since errors at this stage can lead to repeated puncture or damage to the rim during operation.
Tools and workplace preparation required
Before you start disassembling, you need to have a comfortable workspace, you need a flat surface, good lighting and, preferably, free access to the outlet if you want to use a power tool, and chaoticly scattered parts can lead to the loss of small fasteners, which will further complicate the assembly.
The basic set of tools should include a set of hexagonal keys, where the most popular will be the sizes of 4 mm and 5 mm. To work with the tire and camera, it is critical to have special mounting blades, since an attempt to tamper with a rubber screwdriver or knife is guaranteed to damage the new camera or cut the tire itself.
- 🔧 Set of hexagons (mandatory presence of 4 mm and 5 mm)
- 🛠️ Installation blades for working with tires (minimum) 2-3 stuff)
- 🔋 Lithium lubricant or graphite spray for treatment of the inner surface
- 🧤 Working gloves to protect hands from dirt and sharp rim edges
Additionally, it is recommended to prepare a pressure pressure pressure pressure pump and a soap solution that will greatly facilitate the landing of hard rubber on the rim. Do not forget also about rags to clean the knot from accumulated road dirt before starting work.
⚠️ Warning: Before starting any work, be sure to turn off the scooter and make sure it is not in parking or charging mode.
Sequence of dismantling of the wheel from the frame
The process of removing the wheel begins with the removal of external elements that prevent access to the axle. The first step is to remove the engine cover, which is fixed by several screws around the perimeter, carefully unscrew them and remove the plastic casing, trying not to damage the sealing gum, which provides protection from moisture.
Then you have to disconnect the phase wires of the motor. Depending on the Xiaomi model, the connector can be inside the hollow axis or be displayed outside. If the connector is inside, it needs to be carefully pulled out, first unscrewed the lock screw at the end of the axis. Be extremely careful not to damage the contact group.
☑️ Checklist before removing the wheel
The next step is to release the brake system, and you have to loosen the tension of the cable or remove the caliper completely so that the brake disc can pass freely through the pads, and then you unscrew the nuts of the wheel axis to the pendulum of the frame, and you usually use turnkey nuts for 10 or 12 mm, depending on the modification.
When all the mounts are loose, the wheel is carefully removed down, and at this point it is important to hold the frame, because removing the wheel changes the center of gravity of the structure. If the wheel is stuck, do not use excessive force - check if all the screws are unscrewed and if the motor cable does not interfere.
Removal of the brake disc and work with electricity
Once the wheel is removed from the frame, the brake disc must be removed, it is attached to the hub with six screws, which often sour due to moisture and dirt. Before unscrewing, it is recommended to treat the thread with penetrating lubricant (for example, WD-40) and give it time to act.
Use a high-quality bit or key that fits tightly into the screw cap to keep the edges from breaking. Unscrew the screws cross-to-cross, ensuring uniform load relief. After removing the disk, examine the surface: if there are deep furrows or deformation, the disk is better replaced.
| Element | Type of attachment | Tool. | nuance |
|---|---|---|---|
| Engine cover | Perimeter screws. | Hexagon 4 mm | Keep an eye on the sealer |
| Brake disc | 6 screws | Torx T25 Bita / Hexagon | To treat with lubrication, to unscrew cross-over |
| Axis of wheels | Nuts. | Key 10/12 mm | Check the pucks' status. |
| Engine connector | Stopper screw | 2.5 mm hexagon | Don't pull the wires. |
| Engine cover | Perimeter screws. | Hexagon 4 mm | Keep an eye on the sealer |
| Brake disc | 6 screws | Torx T25 Bita / Hexagon | To treat with lubrication, to unscrew cross-over |
| Axis of wheels | Nuts. | Key 10/12 mm | Check the pucks' status. |
| Engine connector | Stopper screw | 2.5 mm hexagon | Don't pull the wires. |
It's important to note the condition of the wires coming out of the axis, and when they are assembled back, they need to be properly stacked in the channel so that they don't rub, and the insulation of the wires should be complete, without cracks or scuffs.
What to do if the brake disc screws do not unscrew?
Replacement of tires and cameras: technology and nuances
The hardest part is removing the old tire. Xiaomi rubber is very rigid, and you can't do without proper technology. First, completely lower the camera by twisting the spool out of the nipple. Then, using the mounting blades, gradually push the side of the tire outside the rim.
You can go round and round, and you can fill one side of the side in, then you can go to the next side, and when one side is completely inside, you can pull out the camera, and then you repeat the procedure with the other side of the side, and you can be careful, the edges of the rim are sharp, and the sloppy movement can tear the new camera.
- 🌬️ Lower the pressure and unscrew the nipple.
- 🔨 Fill the first side of the tire with mounting blades
- 🚲 Remove the old camera and check the inside of the tire.
- 🧴 Lubricate the inner surface with a soapy solution
Installing the new camera starts with a light swap so it doesn't get round and pinched when you're mounting it. Put a nipple in the rim hole, spread the camera inside the tire, and start filling the rubber sides in place. It's critical to make sure that the camera doesn't get between the tyre side and the rim, as this will cause instant puncture when pumped.
To make it easier to land, use a soap solution. Pour it on the tires and rims, which will make it easier for the rubber to slide. Once the tire is in place, pump the wheel to the working pressure (usually 50 PSI or 3.5 bar) and check whether the rubber is evenly settled in a circle.
⚠️ Attention: When pumping tires, loud clicks can come out - this is normal, the rubber falls into place. However, keep your face and hands away from the wheel, as if installed improperly, the tire can jump with force.
Assembly of the unit and installation of the wheel in place
The assembly is done in reverse disassembly, the first thing you do is you install the brake disc, twist the screws evenly, diagonally, to avoid skewing the disc, and that will prevent the pads from beating and friction in the future.
When you set the wheel on the frame, make sure that the motor wires are hollow and not twisted. Carefully wind the axle into the pendulum seats. When you tighten the axle nuts, make sure the wheel is straight in the center. Wheel skewing will cause uneven tire wear and braking problems.
Connecting the electrical connector is a critical moment: make sure the contacts are clean and dry, connect the connectors tightly and lock them with a locking screw, check the engine's weight before final assembly of the plastic casings.
💡
When assembled, lubricate the screws of the motor cap and brake disc with a thread locker (Loctite blue). The vibration when driving unwinds these mounts very quickly, which can cause the disc to break or water to enter the engine.
Install the plastic engine cover by checking the integrity of the seal. All screws must be tightened with effort, but without fanaticism, so as not to break the thread in the aluminum. After assembly, be sure to check the brakes and the absence of foreign sounds when the wheel is rotating.
Verification of assembly and run-in quality
Once the work is done, you need to be carefully checked. Lift the scooter, turn it on and add it smoothly. The wheel should rotate freely, without hitting the brake pads or the lid. Any rustle or beat indicates an error in assembly.
The first ride should be a test ride. Drive at a low speed, checking the brakes and the stability of the scooter. Pay attention to the behavior of the rear wheel in the corners, it should not waddle. If everything is fine, you can go to normal operation.
- 👁️ Visual inspection of gaps between the disc and pads
- 🎧 Listening to the move without extraneous noise
- 🛑 Low speed test braking
- 🔩 Re-drawing the screws through 10-20 mileage
It is recommended that after 10-20 kilometers of run re-check the tightening of all screw joints, as new parts can shrink. Regular maintenance prolongs the life of your electric scooter and guarantees safety on the road.