How to increase the speed of the scooter Xiaomi M365: iron-stitch

Xiaomi’s standard top speed M365 — 25 km/h – limited both software (firmware) and hardware (motor and controller). For most users, that's enough, but if you want to squeeze more out of the scooter -- for extreme driving or long distances, for example -- there are several ways to increase speed. any tuning is associated with risks to the safety, warranty and battery life.

In this article, we will examine legal and illegal overclocking methods, their pros and cons, and give a checklist for preparing a scooter for modifications. You will learn how to circumvent firmware restrictions, what hardware upgrades really work, and what to do to avoid burning the controller on the first day after tuning.

⚠️ Warning: All of the methods described may result in loss of warranty, overheating of components or emergency situations.Be sure to take responsibility for the possible consequences before starting work.

Xiaomi M365 — It's one of the most popular electric scooters in the world, but its factory settings are far from ideal for experienced riders (250 W) and battery (7800 mAh) remain a bottleneck, but with the right approach, you can achieve stable 30-35 km/h without critical wear of parts.

Let’s start with the simplest and most secure – software modifications.

1. Firmware with alternative software: CFW downg

The most common way to overclock is to install custom firmware (Custom Firmware, CFW). It removes factory limits on speed, current and power, and adds additional features (e.g., more power, Eco/Turbo modes or accelerator response settings).

Popular firmware for M365:

• 🔹 DownG (DRV) — The most stable, supports up to 35 km / h with the right settings. It has a built-in Battery Savior to protect the battery.
• 🔹 ScooterHacking Utility (SHU) — Flexible settings, but requires a PC connection.
• 🔹 M365 BLE Tool – a mobile firmware application for Bluetooth (less reliable, but convenient).

For installation CFW need to:

1. Cable USB-TTL (for example, FT232RL) plug-in.
2. Programme STM32 Flash Loader or ScooterHacking Utility.
3. Firmware file (e.g, DRV1.3.6.3 downg).

⚠️ Warning: Incorrect firmware may block the controller. Always check for version compatibility CFW with your fee review (v1.1, v1.2, v1.5 etc.).

2. Hardware modifications: motor, controller, battery

If the software overclocking doesn't work, you'll have to intervene in the hardware.

• 🔋 Increased engine power (replacement by 350-500 Watt).
• 🔌 Modifying the controller to support more current.
• ⚡ Install a larger battery capacity (e.g. 10400 mAh instead of 7800 mAh).

The most effective upgrade – the replacement of the engine on Xiaomi M365 Pro (300 Watts or Ninebot Max G30 (350 That'll give you a speed boost to 30-32 km/h without the risk of overheating:

1. The sleeves are different (the engines have different sleeves).
2. Configure the controller to new parameters (or replace it).
3. Calibration of Hall's sensor.

⚠️ Attention: Installing a motor more powerful than 500 watts will lead to rapid wear of the gearbox and increase the risk of frame failure. Optimal balance is 350 watts.

Alternative: Modifying the controller by replacing the MOSFET-Transistors with more powerful ones (for example, IRFB4110). This will increase the maximum current to 20-25A (against factory) 12-15A), but will require soldering skills and knowledge of circuitry.

Check the compatibility of parts with your scooter review|

Buy thermal paste and shrinkage to isolate contacts|

Prepare a soldering station (power of at least 60 W)|

Take a full video / photo fixing disassembly for reverse assembly|

Check the balance of the wheels after the engine change-->

3. Optimization of gear ratio: gears and wheels

The speed of the scooter depends not only on the power of the motor, but also on the gear ratio in the gearbox. M365 It is designed to balance speed and torque, but it can be replaced by an alternative.

Modification options:

• 🔄 Installation of gears with fewer teeth (for example, 18T instead 20T) speed up 5-10%, but it'll reduce traction on the climbs.
• 🛞 Replace the wheels with a larger diameter (e.g. 8.5" instead of 8.2"). +1" diameter adds ~3% speed.
• 🔧 Polishing the motor shaft to reduce friction (increases to the 2-3 km/h).

When replacing the gear, it is important:

1. Use only gears made of hardened steel (aluminum wears out quickly).
2. Check compatibility with the shaft of the motor (some gears require a leak).
3. Lubricate the gearbox with lithium lubricant (not conventional oil!).

⚠️ Attention: Installation of gears 16T or less can cause the belt to slip and wear faster.

Battery tuning: increasing capacity and voltage

Factory battery Xiaomi M365 (36B, 7800 mAh is one of the major speed limits.+ It discharges rapidly and overheats rapidly, and there are two solutions: replacing it with a larger battery or modifying the existing battery.

Popular upgrade options:

• 🔋 Installation of the battery M365 Pro (10400 mAh) - increases the range by 30-40%, but it doesn't affect speed.
• ⚡ Repackaging of the battery with cells 21700 (e.g. Samsung) 50E) — allows to increase the capacity to 12,000 mAh and voltage to 42V (requires modifications) BMS).
• 🔌 Connecting an external battery (e.g. PowerBank) 48B) parallel to the staff - risky, but gives +10-15 kilometre.

When repackaging the battery, it is critical:

1. Use a balancing charger (e.g. iMax) B6).
2. Install thermosensors on each group of cells.
3. Replace the staff BMS support-model 10A+ discharge-current.

⚠️ Attention: An increase in voltage above 42V will cause the controller and motor to burn. Safest value is 40.5V.

5. Controller setup: current, KV-characteristics, PID

Even after the firmware. CFW controller M365 You can further optimize:

• 📈 Maximum current (Battery Current Limit) - increase in the 12And before 18-20It increases speed, but reduces battery life.
• ⚡ KV-The motor's characteristics change the ratio of speed to torque. KV.
• 🎛️ PID-settings, which are responsible for smooth acceleration and braking, and the wrong values will cause the scooter to twitch.

To change the parameters, use:

1. ScooterHacking Utility (Installation Controller Settings).
2. DownG Configurator (for firmware) DRV).
3. Hand-written editor STM32 (power-user).

Recommended settings for the balance of speed and safety:

Battery Current Limit: 18A


Motor Current Limit: 22A




KV Setting: 110-120 (for 250W motor)




PID P-Gain: 0.8




PID I-Gain: 0.1




PID D-Gain: 0.05

⚠️ Installation of Battery Current Limit > 20A unmodified BMS And the wiring will lead to melting of contacts or fire.

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Before the change PID-So, you can set the settings to write down the factory values, and that'll help you get back to the original state if the scooter starts to twitch or brake inadequately.

6. Weight optimization and aerodynamics

A subtle but effective way to increase speed is to reduce the drag on the road. Even small changes can increase the speed of the vehicle. 2-5 km/h:

• ⚖️ Reducing the weight of the scooter - replacing plastic parts with carbon fiber, removing unnecessary accessories (for example, a staff call).
• 💨 Improved aerodynamics – installing a fairing on the front fork or low profile seat.
• 🛠️ Replacement of bearings with ceramic (reduces friction in wheels).

The most effective modifications in the price/result ratio:

⚠️ Warning: Removing the protective shield over the wheels worsens aerodynamics and can lead to dirt getting into the engine.

7.Alternative methods: remote, Bluetooth module, external controller

If standard methods do not give the desired result, you can go further:

• 🎮 Installing an external control panel (such as Nano Controller) – allows you to fine-tune your speed in real time.
• 📱 Bluetooth module with application (for example, M365 Dashboard – gives access to hidden controller settings.
• 🔧 External controller (e.g, VESC) — Complete replacement of standard electronics, but requires deep knowledge.

The simplest option is a Bluetooth module, which connects to a regular controller and allows you to use your smartphone to:

• 📊 Set up Eco/Turbo regimes.
• 🔋 Monitor the temperature of the battery and motor.
• ⚡ Change the speed limit “on the fly".

For installation VESC need:

1. Replace the full-time controller with a fee VESC 4.12 or VESC 6.
2. Re-sweeten the motor and battery connectors.
3. Set up the firmware through VESC Tool.

⚠️ Attention: VESC It doesn't have built-in short circuit protection. Make sure to put the safety lock on the 30A in the battery circuit.

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Use of an external controller (e.g, VESC) It can reach speeds up to 40+ km / h, but requires a complete reworking of the electronics of the scooter and the skills of working with a soldering iron.

FAQ: Frequent questions about the overclocking of Xiaomi M365