How to remove the rear wheel on the electric scooter Xiaomi M365 Pro

Replacing the camera or fixing a puncture on the Xiaomi M365 Pro is a challenge that comes up to every owner sooner or later, because regular tires are prone to wear. Removing the rear wheel is much more difficult than the front wheel, due to the built-in brushless engine, heavy brake disc and complex mounting system. You will need not only a basic set of tools, but also an understanding of the transmission device to avoid damaging expensive components.

The main difficulty is that the wheel is mounted on the shaft of the engine on both sides, and is also held by a brake caliper. Incorrect sequence of actions can lead to damage to the contact group or failure of the thread on the aluminum elements of the frame. In this article, we will discuss the dismantling process in detail, paying attention to the nuances of working with the Pro version, which is characterized by a reinforced design compared to the base model.

⚠️ Warning: Before starting any work, be sure to completely turn off the scooter, holding the power button, and turn off the battery if there is such a technical possibility to avoid short circuits when working with the motor-wheel.

Tools and workplace preparation required

You'll need a specific set of tools to do the job, because a standard hexagon from the delivery kit won't be enough, and the key element is a special key for the engine shaft nut, which is often included but may be lost, and if it's not there, you'll have to use a large movable key or make the device yourself, which carries risks of damage to the edges.

You will also need hexagonal keys sizes 4 mm and 5 mm, a set of screwdrivers (including cross and flat) and, preferably, a WD-40 liquid or similar penetrating composition for processing sour compounds.

• 🔧 Special key for the shaft nut or powerful dilution key
• 🔩 Set of hexagons (4 mm, 5 mm) and screwdriver
• 💧 Penetrating lubricant (WD-40) and contact cleaner
• 🧤 Tight work gloves to protect hands from sharp edges

Prepare a clean, well-lit space where you can put the parts in order to remove them, which will help avoid the loss of small screws and simplify the process of reverse assembly. Remember that the aluminum alloys used in the construction are softer than steel, and you need to use excessive force when unscrewing with caution.

Dismantling of brake caliper and protective elements

The first step is to free up the space around the wheel. Start by removing the brake caliper that is attached to the frame with two bolts. Use a 5 mm hexagon to unscrew them. You don't have to completely disconnect the brake hose from the hydraulic system, just pull the caliper aside and tie it so it doesn't interfere with or hang on the hose.

Next, remove the protective casing above the wheel, if it is installed, and unscrew the locking screws that fix the position of the axle. On the model Xiaomi M365 Pro often comes additional protection of the engine contacts, which must be carefully dismantled. Be careful: the wires fit to the engine on the left side (in the course of movement) and can be tightened with screeds that have to be cut.

⚠️ Note: When removing the brake caliper in any case do not press the brake handle, otherwise the pads will shrink, and you will have to disassemble the hydraulics or use a special tool to uncluster them.

Once you remove the caliper, look around the engine shaft, and you'll see the big nut that holds the wheel, and that's what requires a special key, and before you try to unscrew it, you'll have to treat the threads with penetrating lubricant and give it time to act, especially if the scooter was in use in the winter.

💡

If the shaft nut fails, don't use percussion tools right away. Try heating the joint with a building hair dryer to 100-120 degrees, this will expand the metal and help break the boiling thread.

Disconnection of electronics and motor-wheel

The most critical step is to cut off the electrical contacts. The motor wheel is connected to the controller via a connector usually located under the deck or inside the near the stem housing. On the Xiaomi M365 Pro, access to it can be limited, so act carefully. Find the connector, press the lock and smoothly pull the halves of the connector to the sides.

Often, wires run inside or are attached along the hollow tube of the frame. You may need to remove the plastic plug on the axle to access the entry point of the wires into the engine. Inside is a contact group that transmits current to the windings. Damage to these thin wires or oxidation of the contacts will cause the engine to malfunction or errors in the display.

When you turn off the wires, make sure they are not twisted or clamped. When you reassemble the grooves, it is important to correctly align the grooves, otherwise the scooter will give a Code 15 error or similar, signaling problems with the engine. Check the insulation status: if it is damaged, be sure to insulate the place with a tourniquet or shrinkage.

Engine shaft removal process

When all the mounts and wires are free, there comes a time when the wheel is physically removed. Put the scooter up so that the back is raised or securely fixed. Put a special key into the shaft nut. It's important to put a stress: often you need the help of a second person who will hold the frame while you apply the force to the key.

Turn the key counterclockwise (left thread is rare, but check the markings, usually unscrewed standard) Once the nut is removed, the wheel is still held on the shaft slings. Take the tire from both sides and, swaying from side to side, pull it on yourself. The movement should be progressive, without jerking, so as not to damage the oils and bearings.

If the wheel is not removed, it may have become stuck or interfered with the tension of the drive circuit (in some modifications). Do not hit the disc directly with a hammer - use a wooden pad. Shock loads can damage the rotor magnets located inside the rim, which will lead to irreversible consequences for the motor.

⚠️ Warning: Inside the engine shaft are magnets and sensitive electronics. Avoid strong impacts and the wheel falling on a hard surface, this can split the magnets or disrupt the balance.

After successfully removing the wheel, immediately inspect the shaft for dirt, water or metal shavings. Clean the surface with rags. This is the perfect time to lubricate the bearings if you have the appropriate skills and tools, although they are often closed on the Xiaomi M365 Pro.

Replace the camera and set the wheel back

Once the wheel is removed, you can replace the camera or tire. The Xiaomi M365 Pro features tubeless tires, but many users put cameras in for reliability. When installing a new camera, be sure to sprinkle it with talc so that it does not rub against the tire from the inside. Make sure that the camera is not sandwiched between the rim and the tire, otherwise you can re-break.

The wheel is set in reverse sequence. Put the wheel on the shaft, aligning the slats. This may require the wheel to rotate to get into the slots. Then pull the shaft nut from hand to stop to make sure the fit is correct. Only then tighten the nut with the key with the necessary force.

• 🚲 Put the wheel on the shaft, combining the silk joint
• 🔩 Twisting the shaft nut to the end of the arm
• 🔌 Connect the electrical connector before the snap of the locker
• 🛑 Install the brake disc and caliper in place

Remember to plug in the power connector before final assembly of the plastic casings. Check the wheel on weight: turn on the scooter and smoothly press the gas. The wheel should rotate freely, without extraneous sounds and beats. If you hear a hum or feel resistance, perhaps the shaft nut is pulled or the wheel is skewed.

💡

Proper installation of the wheel is when it rotates freely on weight, and the shaft nut is tightened with a force that excludes backlash, but does not clamping the bearings.

Frequent errors and troubleshooting

When self-repairing, beginners often make mistakes that lead to additional costs. One of the most common is the tug of the shaft, which causes the engine shaft to rotate inside the rotor or damage the bearings. Use the dynamometer key if possible, or focus on the force recommended by the manufacturer.

Another mistake is ignoring the state of the brake disc. When removing the caliper, the disc may bend. If the pads start to tick back against the disc with a characteristic metal sound, it must be controlled with a special tool or neat pliers (with due care), and it is also often forgotten to lubricate the shaft nut thread with graphite lubricant before twisting, which will complicate the next repair.

If the scooter is not driving or twitching after assembly, check the connection of phase wires in the engine connector. Incomplete contacting leads to the engine operating in the wrong mode, which causes strong heating and hum. Carefully examine the wires for inflections at the exit of the axle.

Regular chassis maintenance extends the life of your electric scooter, monitor tire pressure, brake condition and clean contacts. Correctly performed wheel replacement will return your Xiaomi M365 Pro smooth ride and safe movement.

💡

Once assembled, make a low-speed trial ride in a safe place, check the brakes and no extraneous noise before leaving for the public road.