How to install a cast tire on a Xiaomi scooter: from the choice of rubber to balancing

Xiaomi scooters are not just a trend, but a practical solution for those who are tired of constant punctures and the desire to save on repairs. Unlike pneumatic wheels, cast rubber does not require pumping, is resistant to mechanical damage and lasts 2-3 times longer. However, its installation has nuances from the right size selection to accurate balancing to avoid vibrations at high speed.

Many owners are afraid to change their wheels for fear of damaging the motor or bearings, and in fact, the process is no more difficult than replacing a tire on a bicycle, if you know the sequence of actions and have a minimum set of tools at hand. In this article, we will analyze all the steps from dismantling the old wheel to test drive after installation, and also reveal the secrets to prolong the life of cast rubber and avoid mistakes.

⚠️ Important: Cast tires are not suitable for all Xiaomi models. For example, on the Mi Electric Scooter 1S/Pro 2 you can install only special tubeless versions marked 8.5" or 10" - check compatibility before buying!

Why cast tires are better than pneumatic: pros and cons

The main advantage of cast rubber is that it doesn't have the risk of puncture, which is critical for urban driving, where you often get nails, glass or sharp stones on the roads, and pneumatic tires are punctured on average every 2-3 months, while cast tires last for years without replacing.

Other pluses:

• 🔧 Minimum maintenance: no pressure checks, pumping or repairing of cameras.
• 💰 Savings: The cost of a cast tire pays off in 1-2 seasons due to the absence of costs for puncture repairs.
• ⚡ Wear resistance: Modern rubber compounds (such as Honeycomb or Solid Tire) can withstand up to 5,000 km of run.
• 🌧️ All-weather: not afraid of rain, snow or dirt (unlike pneumatics, which can burst from a temperature drop).

However, there are also disadvantages:

• 🚫 Stiffness: cast wheels are worse at cushioning shocks, so riding on rough roads becomes less comfortable.
• ⚠️ Vibrations: If bearings are not properly balanced or worn, beats may occur at speeds in excess of 25 km/h.
• 🔄 Replacement difficulty: Removing a cast tire without special tools is more difficult than a pneumatic tire.

🔹 Conclusion: Cast tires are ideal for urban trips on flat asphalt. If you drive on primers or off-road, it's better to stay on pneumatics or consider hybrid options (such as Tannus Airless).

What tools will be needed for installation

Xiaomi doesn't need professional tools to replace the tires on the scooter, just a basic set.

• 🔧 Hexagon keys (usually 4 mm and 5 mm) - for unscrewing wheel mount bolts.
• 🔨 Installation blades (2-3 pieces) to carefully remove the old tire from the rim, plastic or metal with rounded edges will do.
• 🛠️ End key (size depends on the model of the scooter, more often 13 mm or 15 mm) - for the axle nut.
• 🧲 Magnet or bowl – so as not to lose small parts (beads, washers).
• 🧴 Lubrication (e.g., WD-40 or litol) - for processing bearings and threads.
• 📏 Line or caliper - to measure the diameter of the rim and the width of the tire.

💡 Tip: If you have a wheeled scooter (such as a Xiaomi M365 or Pro 2), you will need a multimeter to check the integrity of the winding after dismantling, and a shrink tube to isolate the contacts will also be useful.

⚠️ Warning: Do not use sharp objects (knives, screwdrivers) to remove the tire - they can damage the rim or motor! If the tire is boiling, moisten it with soap solution and wait 10-15 minutes.

Check the compatibility of cast rubber with the model of the scooter |

Buy lubricant for bearings (litol or analogues)|

Prepare the workplace (clean surface, good lighting)|

Take a picture of the motor connection circuit (if you disassemble the motor-wheel)|

Charge the scooter by 30-50% (for the test after assembly)-->

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

Before you install the cast tire, you have to disassemble the old wheel, and the process varies depending on the type of scooter, whether it's with or without a motor, and let's look at both.

For wheeled scooters (Xiaomi M365, Pro, 1S):

1. Disconnect the scooter from the grid and remove the battery (if it is removable).

For scooters without motor (Xiaomi Mi Electric Scooter Essential, Lite):

⚠️ Warning: If the wheel does not come off after the nuts have been unscrewed, do not hit it with a hammer! try swaying the wheel from side to side or spraying the axle WD-40. An application of excessive force can bend the fork or damage the bearings.

How to properly install a cast tire on the rim

Installation of cast rubber requires care: unlike a pneumatic tire, it cannot be pulled by force. Here is a step-by-step algorithm:

1. Apply lubrication: Treat the inner surface of the tire and rim with soap solution or special tyre lubricant (such as Schwalbe Easy Fit) to make installation easier.

Check the balance:

🔹 Important: Cast tires often come with a direction-of-rotation marking (arrow on the sidewall). Make sure the arrow matches the direction of the scooter (forward). A rear-in-the-front setup will reduce the life of the rubber by 30-40%.

⚠️ Warning: If the tire doesn't fit on the rim, don't try to heat it with a hair dryer or boiling water, it'll ruin the rubber structure! Better go back to the store and see if the size fits.

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Before you finish assembly, you can manually scroll the wheel and listen, if you hear a squeak or a crack, you're rubbing the tire against the rim, in which case you take it off and check for alignment.

Scooter assembly and test drive: what to check

Once the tire is installed, you have to assemble the scooter and test it.

• ✅ Tighten all bolts: Twisting the axis nut at a force of 20-25 Nm (use a dynamometer key if you have one).
• ✅ Connect the motor: Make sure the connector is tight and there are no bare wires.
• ✅ Check brakes: Cast tires can change braking distance. Test brakes at low speed.
• ✅ Calibration: After changing the wheel, the speed calibration may be lost. Go to the Mi Home app and reset the controller settings (Settings → General).

🚀 First test drive:

1. Drive 100-200 meters at low speed (up to 10 km / h), listening to outside sounds.
2. Check if there's any vibrations on the steering wheel. If there are, stop and check the balance.
3. Test the brakes: the braking distance should be smooth, without jerks.

📊 Table: Comparison of scooter behavior before and after cast rubber installation

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After replacing the tire, be sure to check the pressure in the shock absorbers (if any) - cast rubber transmits more vibrations to the frame, and may need to pump them.

Common Mistakes and How to Avoid Them

Even experienced scooters make mistakes when installing cast tires.

• 🔄 Size mismatch: Buying a tire that is not the same diameter (e.g., 8" instead of 8.5") causes it to not sit on the rim or rub against the fork. Always check the markings on the old tire!
• 🔧 Nut pulling: Excessive axle tightening force can warp bearings or rip the thread. Use a dynamometer key.
• ⚡ Ignoring Balancing: Wheel imbalances result in vibrations that, at speeds above 30 km/h, can disable bearings or even the steering column.
• 🛑 Forget about brakes: Cast tires have a different coefficient of adhesion. If you don't adjust the brake pads, the braking distance will increase by 1.5-2 times!

🔧 How to correct vibrations after installation:

1. Remove the wheel and check if the tire is evenly seated on the rim.
2. If the imbalance remains, buy a balancing weight (cost ~100–200 ₽) and tape it to the rim in problem areas.
3. Check the bearings: scroll the wheel manually – if you hear a crunch, they need to be replaced.

⚠️ Warning: If the tires are replaced and the scooter gets worse or the engine whistles, you probably damaged the winding when you dismantle them, and you need a service diagnosis, and you can short circuit your own tire repairs without experience!

How to prolong the life of a cast tire: tips for operation

Cast tires last longer than pneumatic tires, but they also require maintenance.

• 🧹 Regular cleaning: After each trip through mud or snow, wash your wheels with soap and water. Abrasive particles (sand, salt) accelerate rubber wear.
• 🌡️ Avoid overheating: Do not leave the scooter in direct sunlight - cast rubber at temperatures above +50°C can deform.
• 🚧 Go around obstacles: Hitting a curb or a hole at speed can break the tire. The cast rubber doesn't cushion, so all the loads go to it.
• ⚖️ Control balancing: Every 500 km of running, check the wheel for beats. If they show up, rebalance.

💡 The masters secret: To make the tire last longer, treat it once a month with silicone lubrication (e.g., CRC 2-26) to prevent the rubber from cracking and protect it from UV rays.

📅 Life of the cast tire:

• 3,000–5,000 km when driving on asphalt.
• 1,500-2,500 km – if you often drive on primers or gravel
• Up to 10,000 km for premium models (such as Honeycomb or Tannus).

FAQ: Answers to Frequent Questions