How to increase the speed of the scooter Xiaomi: from firmware to upgrade iron

Xiaomi scooters are some of the most popular vehicles in the city, but factory speed limits (usually 20-25 km/h) often disappoint owners. The good news is that speed can be increased in several ways, from software settings to upgrade components. The bad news is that not all methods are safe for the technician and the driver.

In this article, we will discuss 7 working ways to disperse Xiaomi scooters M365, Pro 2, 1S, 3 and other models - from simple (change of driving mode) to radical (replacement of the controller), you will learn which methods give an increase to 40-50 km / h, and which only by 5-10 km / h, but without risking a warranty.

⚠️ Warning: Increased speed reduces power reserve, accelerates battery wear and can lead to loss of control.

1. Change of driving mode: the safest way

Before you climb into the firmware or disassemble the scooter, check the current driving mode. Most Xiaomi models have 3 presets:

• 🚲 Eco - economical (maximum 15-18 km / h, soft acceleration)
• ⚡ Standard – standard (20–25 km/h, balance of speed and power consumption)
• 🏎️ Sport - sports (25-30 km / h, aggressive acceleration)

Switch modes by double pressing the power button (on some models - Power retention) + If you drive in Eco, switching to Sport will increase to 5-7 km / h without any changes.

⚠️ Attention: In Sport mode, the scooter discharges 20 to 30 percent faster and the braking distance increases.

2. Controller firmware: acceleration through software

If the change of mode is not enough, the next step is to flash the controller (ESC). This allows you to remove the software speed limits set by the manufacturer:

• 🔧 Custom Firmware (CFW) — modified versions of official software with advanced settings.
• 📊 DownG - firmware to increase speed and improve overclocking (supports) M365, Pro, 1S).
• 🚀 ScooterHacking Utility (SHU) — universal tool for fine-tuning parameters.

The firmware process requires:

1. Download firmware from a verified source (e.g. ScooterHacking).
2. Connect the scooter to the PC through USB-C (You need an ST-Link adapter for older models).
3. Run the utility (for example, STM32 Flash Loader) and download the firmware file.

⚠️ Attention: Incorrect firmware may brick the controller. Before the procedure, check the compatibility of the software version with your scooter model. M365 Not suitable for Pro 2.

Download the firmware for your model|Check the battery charge (minimum 50%)|Prepare the ST-Link cable (for older models)|Make a backup of the current firmware|Disable antivirus (can block utilities)

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After successful firmware speed will increase by 10-15 km / h (up to 35-40 km / h per unit). M365). But keep in mind:

• The power reserve will be reduced by 15-20%.
• The load on the engine and battery will increase.
• There may be problems with the brakes (it is recommended to calibrate them after firmware).

Replacement of wheels: larger diameter = speed

The physics is simple: the larger the wheel diameter, the higher the speed at the same engine speed. Factory wheels on Xiaomi are usually 8.5 inches. Replacing them with 10-inch will increase to 5-8 km / h without changing the firmware.

Popular options:

⚠️ Attention: Increased wheel diameter increases engine load. If your scooter is already stitched at high speed, the risk of overheating increases. Also check if the new wheel will fit your fork (sometimes you need to replace shock absorbers).

💡 Tip: After changing the wheels, be sure to calibrate the speedometer in the Mi Home app (Settings section) → Wheel calibration, otherwise the speed readings will be inaccurate.

4. Battery upgrade: more voltage = more

The speed of the scooter depends on the battery voltage. 36V (Pro 2 — 42V). Replacement with a battery with high voltage (for example, 48V or 52V) increase speed by 10-20 km/h.

Upgrade options:

• 🔋 Replacement with Li-ion 48V — speed increase to 35 km / h, but requires improvement BMS (battery-control).
• ⚡ Installation 52V battery speeds up to 40-45 km / h, but you need to replace the controller (standard will not withstand the speed of the battery).
• 🔌 Extra battery – connects in parallel, increases the voltage and capacity (for example, 10S4P on 36V).

⚠️ Attention: Installation of the battery with a voltage higher 48V It requires a replacement of the controller and motor, otherwise the risk of fire or failure of the electronics.

📌 Example of configuration for speed 45+ km/h:

• Battery: 52V 20Ah (For example, the Samsung 21700).
• Controller: Votol EM-150/900 (maintain 60V).
• Engine: 800W–1000W (replacement–350W).

5. Engine replacement: a radical increase in power

Xiaomi’s standard engines have 250 power–350W, What is enough for 20-25 km / h. Replacement with a motor power 500W–1000W will allow to accelerate to 40-50 km / h, but will require further development:

• 🔧 Compatibility with the controller – the motor 800W It won't work with the factory. ESC.
• 🔋 Battery - you need with a discharge current at least 20A (Otherwise, there will be a voltage drawdown).
• 🛠️ Fixing – may require the completion of the frame or order adapter.

Popular engines for upgrade:

⚠️ Attention: Higher power motors 800W They need a reinforced frame. M365 and 1S installation 1000W The engine can cause a fork to break when braking sharply.

💡 Tip: After you change the engine, be sure to check the wheel's balance.Imbalance at high speeds leads to vibrations and loss of control.

Brake tuning: safety at high speed

Speed increases are useless without reliable brakes. - Xiaomi standard brakes (disc) + electronic) designed for 20-25 km/h at speeds of 35+ km/h brake distance increases by 2-3 times.

Methods of improving brakes:

• 🔩 Replacement of brake pads - the original wear for 1,000-1500 km: EBC Galfer.
• 🛞 Installation of hydraulic brakes - for example, Shimano Deore (cost) ~6 000 ₽). Reduces the braking distance by 30-40%.
• 🔧 Electronic brake setup – in firmware, you can increase the recovery force (but this will reduce the efficiency on wet roads).

⚠️ Warning: At speeds above 30 km/h, the electronic brake (recovery) is almost non-functioning!

📌 Brakeway test:

• Standard brakes (25 km/h): ~3-4 meters.
• Hydraulics (40 km/h): ~6-8 meters.
• Worn-out pads (30 km/h): ~10+ meters.

7 Legal aspects: where can I drive fast?

In Russia, electric scooters are equated to mopeds if their speed exceeds 25 km / h.

• 🚦 SDA: Only on bike lanes or right lane (if there is no cycling infrastructure).
• 📄 Documents: Requires category M (or any other category) rights).
• 🚔 Fines: For speeding on a scooter - 1000-1 500 ₽ (12.29 of the Administrative Code).

In other countries, the rules differ:

⚠️ In Moscow and St. Petersburg there are additional restrictions: on the sidewalks, the speed should not exceed 10 km / h, otherwise a fine of 3,000 ₽.

💡 Advice: If you have dispersed the scooter to 30+ Km/h, install rear-view mirrors and light signals, which will reduce the risk of accidents and fines.

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Any upgrade to speeds above 25 km/h makes the scooter a moped by law, which means that you need rights, a helmet and traffic compliance.

FAQ: Frequent questions about the acceleration of scooters Xiaomi