Replacing the wheel on a Xiaomi electric scooter is a task that every owner sooner or later faces. Whether you are faced with a puncture, tread wear or just want to install a more durable tubeless tire, the process requires accuracy and knowledge of the key points. Unlike a bicycle where the wheel is fixed by an axis and an eccentric, Xiaomi scooters (including popular models) M365, Pro, 1S, The 3 and 4 Pros have a specific braking system with a brake disc and electrical contacts (on the rear wheel). Assembly errors can lead to uneven wear, loss of power or even failure of the controller.
In this article, we'll take a step-by-step approach to the different models, the tools and the common mistakes, and focus on the rear wheel (where the brake and the engine are), because it's harder to replace the front wheel, and if you've never done a repair job, don't worry: with the right approach, it's doable even for a beginner.
Before you get started, make sure you have a spare wheel compatible with your scooter model. for example, for Xiaomi M365 If you have 8.5-inch tires, if you have a Pro 2, you have 10-inch tires, and if you don't have a diameter or a rim width, you'll have problems balancing and controlling.
1.Preparation: tools and safety
To replace the wheel on the Xiaomi scooter, you will need a minimum set of tools, but you can not do without them.
- π§ 5 mm end key (or hexagonal - depending on the model). M365 Pro and usually use a key of 5 mm, and Xiaomi 3 β 6 mm.
- π¨ Screwdriver cross (for removing plastic covers).
- π οΈ Flat-deadling (may be needed to work with brake cables).
- π§΄ Lubrication for bearings (optional, but recommended for assembly).
- π Multimeter (to check the contacts on the rear wheel, if the scooter does not turn on after replacement).
Also prepare a clean workplace β it is better to cover the table with cloth or cardboard, so as not to scratch the scooter body. If you work with the rear wheel, be sure to turn off the power by removing the battery (on models with a removable battery) or de-energizing the scooter with a long press on the on button (10 seconds).
β οΈ Warning: Do not start if the scooter was in the cold or in the rain. Condensation inside the body can cause a short circuit when the wheel is connected.
If you replace the front wheel, the process will be easier β there is no brake disc and electrical contacts. However, there are nuances here: for example, Xiaomi 3 and 4 Pro models use a quick-removal axle that can be unscrewed without a key, but when you build it back, it is important to tighten it with the right force (slack will lead to a backlash, a pull-up will lead to a difficult rotation).
2. Removal of the old wheel: disassembly by steps
Starting with the removal of a worn or punctured wheel, the process is different for the front and rear axles, so let's look at both.
Front wheel.
- Turn the scooter upside down, resting on the steering wheel and the bandwagon, make sure it's stable.
- Remove the plastic axis cover (if any) - it is attached to the latches or one screw.
- Unscrew two nuts with the end key (on the M365 β 5 mm 3/4 Pro β 6 If the nuts are stuck, use them. WD-40.
- Carefully remove the wheel from the axle while holding the bearings. If the wheel is not removed, slightly tap the axis with a rubber hammer.
Back wheel.
This is a bit more complicated because of the brake disc and the electrical contacts.
- Turn off the power of the scooter (see the section on safety).
- Remove the plastic cover by unscrewing 2-3 screw-screw.
- Unplug the engine power connector (which is near the axle) Carefully pull the plastic tongue, don't pull the wires!
- Reduce the brake cable (if it interferes). On models with disc brakes (Pro 2, 4 Pro) you may need to remove the brake pads.
- Unscrew the axle nuts (similar to the front wheel) and remove the wheel while holding the brake disc.
β οΈ Attention: On the back wheel Xiaomi M365 And the Pro often attaches the brake disc to the axle. If the wheel is not removed, don't force it, treat the dock first. WD-40 and wait 10-15 Forced withdrawal can bend the disc!
After removing the wheel, inspect the bearings and axle, if they have rust or backlash, replace them, and check the condition of the brake pads - if they are worn more than 50%, install new ones.
Examine the axle for damage|Check the integrity of the brake disc (for the rear wheel)|Make sure the engine power connector is not damaged|And they will be slapped with slacks (if they are detached)|Clean contacts of oxidation (for the rear wheel)-->
3.Installation of a new wheel: key points
Now, to build, it's important to keep the sequence of actions and tighten the mounts properly.
Front wheel.
- Put the new wheel on the axle, combining the holes.
- Twisting the nuts cross-cross to avoid skewing. Don't tighten them all at once -- make money first, then trust.
- Check that the wheel rotates freely, without backlash. If there is resistance, relax the nuts and adjust the position.
- Put the plastic cover in place.
Back wheel.
This is a difficult process because of the electrical contact:
- If you have removed brake pads, set them back, making sure they do not rub against the disc.
- Put the wheel on the axle, combining the grooves of the brake disc with the mount.
- Connect the engine power connector, make sure the contacts are clean and not oxidized, and wipe them with alcohol if necessary.
- Twisting the axle nuts, then adjust the tension of the brake cable (if it has been weakened).
- Set a plastic cover.
Critical: on Xiaomi models M365 And the Pro power connector has a brittle plastic lock, and if you break it, the wheel will shut off when you're driving through rough terrain, and when you plug it in, make sure it clicks on the characteristic sound.
After assembly, check the brakes. Press the brake lever, the wheel should lock evenly, without creaking. If the brake is weak, adjust the tension of the cable or check the wear of the pads.
π‘
If the scooter is not moving or twitching after the rear wheel is replaced, check the contacts of the engine connector with a multimeter. Often the problem lies in oxidation or poor connection.
Adjustment and Test Drive: What to Check
Successful wheel replacement is only half the battle, so now you have to make sure everything works correctly.
- π Scroll the wheel manually - it should rotate smoothly, without jamming.Luft more than 1mm is unacceptable.
- π² Check the brake β when locked, the wheel should not creak or vibrate.
- π Turn on the scooter and check if the engine is responding (for the rear wheel). On models with a display (Pro 2, 4 Pro) there should be no error warnings on the side.
- π Measure tire pressure (if the wheel is chamber β 40-50 PSI (marked on the side of the tyre).
If everything is in order, make a test run on a flat surface:
- Check if the steering wheel is hitting when driving (this is a sign of a curved wheel).
- Make sure that the scooter accelerates evenly (for the rear wheel).
- Test the brake at low speed β it should operate smoothly.
β οΈ Warning: If the scooter begins to vibrate at speeds above 20 km/h after the wheel has been replaced, it is likely that the wheel is skewed or the bearing is damaged!
On Xiaomi 3 and 4 Pro models, after replacing the wheel, you may need to reset controller errors.
- Turn off the scooter.
- Press the power button for 10 seconds.
- Turn on the scooter again.
5. Common Mistakes and How to Avoid Them
Even experienced users sometimes make mistakes when replacing wheels on Xiaomi scooters, and here are the most common ones and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Inadequate tightening of axis nuts | Luft wheels, vibration, risk of unwinding during driving | Tighten the nuts cross-cross with effort 10-12 Nm (use the dynamometer key) |
| Axis nut pulling | Difficulty rotating, overheating of bearings | After puffing, check that the wheel rotates freely. |
| Incorrect connection of the engine connector | The scooter does not drive, twitches or shows an error | Make sure the connector is snapped before the characteristic click. |
| Ignoring the backing of bearings | Accelerated wheel wear, vibration at high speed | Before installation, check the bearings for backlash and noise |
| Use of an incompatible tyre | Poor grip, risk of puncture, unstable management | Buy the tires recommended for your model (see compatibility table below) |
Pay special attention to the braking system. On disc brake models (Pro) 2, 4 Pro) often forget to adjust the gap between the pads and the disc. If the gap is too large, the brake will be weak; if it is too small, the wheel will slow down when moving β 0.3-0.5 mm.
Another common problem is a skewed wheel, which happens when the nuts are unevenly tightened or the wheel is not fully settled on the axle.
- The scooter pulls aside when riding.
- One of the wheels wears out faster.
- There is vibration at a speed above 15 km / h.
To avoid skewing, always tighten the nuts diagonally rather than in turn, for example: first tighten the top nut a little, then the bottom nut, then the top nut again, and so on.
What if the wheel is not replaced after the scooter is switched on?
6.Wheel selection: Which tires are right for Xiaomi
Not all wheels are suitable for Xiaomi scooters, and using an incompatible tire can lead to poor handling, rapid wear and tear, or even breakage of the fork. Below is a compatibility table for popular models:
| Model scooter | Wheel size | Tyre type | Recommended brands |
|---|---|---|---|
| Xiaomi M365, 1S, Pro | 8.5 inches | Chamber or chamberless | Kenda, Cheng Shin, Innova |
| Xiaomi Pro 2, Essential | 8.5 inches | Integrated (recommended) | Kenda K1167, Schwalbe Marathon |
| Xiaomi 3, 3 Lite | 10 inches | Intemperate | Kenda K1183, Maxxis Hookworm |
| Xiaomi 4 Pro | 10 inches | Integrated with puncture protection | Schwalbe Big Apple, Kenda K1183 Pro |
For urban driving, the best choice is tubeless tires with puncture protection (for example, Kenda). K1167 They last longer and they're less afraid of nails or glass. If you're driving off-road or on rough pavement, look at tyres with a deep tread, like the Maxxis Hookworm.
When buying a wheel, pay attention to:
- π Diameter β must match the original (8.5β or 10").
- π Rim width β too wide a tire can rub against a fork.
- π Camera type β tubeless tires require special rims (all modern Xiaomi they are installed).
- π‘οΈ Protection from punctures β especially important for urban conditions.
If you choose between chamber and tubeless tires, consider:
- β Cambrian longer keep pressure, less afraid of punctures, but more difficult to install.
- β Chambers are cheaper and easier to repair, but more often pierce and require swaps.
π‘
For scooters Xiaomi 3 and 4 Pro use only tubeless tires β chamber is not compatible with their rims and can burst when pumped.
7. Care for wheels: how to extend their service life
Even the best quality wheel will not last long, if you do not monitor its condition. Here are some tips to help avoid premature wear:
- π§ Check the pressure regularly β the optimal value is indicated on the sidewall of the tire (usually 40-50 PSI). Under-performed wheel wears out faster and increases the risk of puncture.
- π§Ή Clean the tread from stones and glass after every trip, which can plunge into rubber and cause puncture.
- π Change the wheels every time. 1000-1500 This will ensure uniform wear and tear.
- π‘οΈ Use a sealant** for tubeless tires (such as Slime or Orange Seal) that automatically seals small punctures.
If you often drive on rough roads, consider installing a depreciation plug (for example, for Xiaomi). M365 It's going to be a fork from Ninebot Max, which will reduce the load on the wheels and bearings, and make the trip more comfortable.
For tubeless tires, it's important to monitor the rim, so if it has burrs or dents, the tire will let the air flow, in which case the rim needs to be polished or replaced.
β οΈ Warning: Never use high-pressure compressors (e.g. automobile) to pump tubeless tires. Maximum pressure for scooters is 50. PSI. Exceeding this value can lead to a rupture of the tire!