Removal of the rear wheel on Xiaomi M365: disassemble by turns with photos and tips

Why would you want to take off the rear wheel on the Xiaomi M365?

The rear wheel of the Xiaomi M365 is not just a chassis element, but a whole assembly that includes the engine, braking system and electrical wiring, and its dismantling is required in several cases, from a banal replacement of the tire to serious repair of the engine or controller, for example, if the scooter begins to twitch when accelerating, makes extraneous noises or stops driving at all, with a 90% probability that the problem lies in the rear wheel.

Another common cause is rubber wear. The rear wheels on the M365 wear faster than the front wheels because of engine weight and braking load. Many owners also experience wires breaking inside the wheel after a heavy hit or fall, and if you decide to upgrade the scooter (for example, put a wheel with a more powerful engine), you can not do without removing the old one.

It’s important to understand that the rear wheel of the Xiaomi M365 is structurally more complex than the front: it has a disc brake, a hall sensor for speed control and a power cable that goes to the controller. So the process requires care – one wrong movement can lead to a wire break or damage to the brake disc.

Preparation: security tools and measures

Before you start disassembling, make sure you have everything you need.

• 🔧 Hexagons (dimensions 4 mm and 5 mm) - for unscrewing the wheel mounting bolts and brake caliper.
• 🔨 End keys (10 mm and 13 mm) - for the axle nut and shock absorber bolts.
• 🔪 Flat screwdriver - will help to undercut the engine cover and gently disconnect the connectors.
• 🧲 Magnet or pliers - so as not to lose small washers and bolts.
• 📸 Smartphone – take a picture of the location of wires and mounts before disassembling!

Also, prepare your workspace: it is best to disassemble the scooter on a clean table or a workbench covered with cloth so as not to scratch the body. If the wheel is heavily contaminated, pre-clean it of dirt and oil - this will make it easier to access the bolts.

⚠️ Attention! Never start disassembling if the scooter is on or connected to charging. Even when it is off, the capacitors in the controller can retain charge, so disconnect the battery (unplug 4 bolts of the battery compartment cover and disconnect the connector).

If you're first to take a look at the Xiaomi M365, we recommend you watch the video manual on YouTube, which is a visually easier process, but remember, most of the videos don't show you the key nuances, like how to properly disconnect the hall sensor jack without damaging it.

Step-by-step: how to remove the rear wheel

Now, to the process itself, follow the instructions in strict order so that you don't miss important details.

Step 1: Remove the brake caliper

Start with the brake system. The soupport is attached with two hexagonal heads (5 mm). Unscrew them, but not to the end - first weaken, then remove the bolts completely. Carefully remove the caliper and hang it on a wire or put it on a table without pulling the brake hose.

If the caliper is stuck and not removed, don't hit it with a hammer! Fly WD-40 bolts or similar lubrication and wait 10-15 minutes. Also check if the brake disc is clamped - sometimes the pads stick to it after a long parking.

Step 2: Unconnecting the wires

Under the wheel cover (it is mounted on 4 bolts under a hexagon of 4 mm) there are three key connectors:

• 🔌 Motor power cable (thick wires, usually black and red).
• 📡 Connector of hall sensors (thin plume with 5-6 wires).
• 🔄 Brake sensor connector (if electronic brake is installed).

Unplug the connectors gently by pulling the plastic case, not the wires! If the connector does not lend itself, check if it has a hold (a small plastic tongue that needs to be bent). Hall sensors are especially sensitive to cliffs - if you damage them, the scooter will lose control of speed and will twitch.

Check that the scooter is off and the battery is off.

Take a picture of the location of the connectors

Mark with a marker or tape which connector where you connected

Don’t pull the wires – just for plastic cases-->

Step 3: Dismount the wheel from the axle

Now unscrew the axis nut (key 13 mm). It can be tightened very tightly - use a lever (for example, a pipe on the key), but do not make excessive efforts not to break the thread.

1. Remove the washers and bearings (remember their order!).
2. Carefully pull the wheel on yourself - it should come off the axis.
3. If the wheel is jammed, tap on the axis with a soft hammer (for example, rubber) or use a receiver.

Be careful: inside the wheel may remain a magnetic rotor, which when dropped can damage the hall sensors, it is better to remove the wheel above the table or put a soft cloth.

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If the wheel is not removed even after the nut is unscrewed, check if the brake disc is clamped between the pads. Sometimes the caliper interferes with the dismantling, even if the bolts are unscrewed.

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when removing the rear wheel of the Xiaomi M365, and here are the most common ones and ways to prevent them:

Another common problem is that the connectors are tangled when they're reassembled, so if you plug in the hall sensors in the wrong polarity, for example, the motor will rotate backwards, and to avoid that, mark the connectors with a marker before disconnecting, or take a photo.

⚠️ Attention! If the scooter is not driving after assembly or squeaks when the wheel is rotating, turn it off immediately! This is a sign of a short circuit in the motor or controller. Check the integrity of the wire insulation and the correct connection of the connectors.

What to do after removing the wheel: diagnosis and repair

When the wheel is finally removed, check it for damage.

• 🔍 Tire and camera: cracks, punctures, uneven wear, if the rubber is worn to the cord, it urgently needs to be replaced.
• 🧲 Rotor magnets: check if they have unstuck (a common problem after impacts).
• 🔌 Wires: inspect for pertyres, meltings or oxidation of contacts.
• 🛠️ Bearings: twist the wheel in your hands – if you hear a crunch or backlash, the bearings require replacement.

If you have removed the wheel due to engine problems, check the resistance of the windings with a multimeter. The normal value for the Xiaomi M365 is about 0.2-0.5 Ohms. If resistance is close to zero, this is a sign of turn-on circuit, and the engine must be replaced.

If the wheel was removed to replace rubber, note: new tires Xiaomi M365 often go “oak” and require rolling. the first 20-30 km scooter can vibrate — this is normal.

Wheel Assembly: reverse order and nuances

The wheel should be assembled in reverse order, but taking into account several important points:

1. Set the wheel on the axle, making sure that the brake disc is placed exactly between the pads.
2. Put the washers and bearings in the same order as the one you took off.
3. Tighten the axis nut, but do not overdo it - enough effort 40-50 N·m If there is no dynamometer key, tighten to the end, then pull 1/4 of the turn.
4. Connect the connectors, starting with the hall sensors, then the power cable and brake sensor.
5. Put the caliper in place and tighten the bolts, make sure the brake hose is not twisted.

After assembly, be sure to check:

• 🔄 The wheel should rotate freely, without hooks and noise.
• 🛑 The brakes should work smoothly, without creaking.
• ⚡ When the scooter is turned on, the motor should not "twitch" or squeak.

⚠️ If the scooter fails to turn on or gives an error after assembly E014 (engine problem, check: Connection of connectors (especially hall sensors) integrity of wires - possibly when the cable was squeezed; nut tightening - if the axle is not stretched, the wheel can shift and touch the frame.

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The most common assembly error is the entangled connectors of the hall sensors, so if the motor is rotating backwards or the scooter is not gaining speed, check their connection first.

When is the best time to contact the service?

Not all rear wheel failures of the Xiaomi M365 can be repaired by yourself.

• 🔥 The engine burned (you will feel the characteristic smell of burning, the windings turned black).
• 🧩 Wheel body (cracks near axle or brake disc attachment) has broken).
• 🔌 Wires at the base were torn off (it is difficult to solder them without special equipment).
• 🛠️ Replacement of bearings (requires a press or a detacher).

It's also worth entrusting repairs to professionals if you've never dealt with an electrician, and errors in the motor or controller can cause a fire or a board breakdown, which is more expensive than the original repair.

The average cost of replacing the rear wheel in the service is 3000-5 000 rubles (depending on the region and the complexity of the work). If you need to replace the engine, be prepared to pay 5 000-8 000 rubles for the original part plus work.

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Before you go to the service, take a photo or write down the serial number of the scooter (under the battery), which will help you find original parts and avoid counterfeiting.

FAQ: Frequent questions about Xiaomi’s rear wheel M365