Description
PearTune MSO 4.0: The Ultimate Avinox DJI M1 Unlock.
Why settle for the 25 km/h factory limit? The PearTune MSO 4.0 is an advanced add-on device engineered specifically for e-bikes featuring the Avinox drive system with the M1 motor. Remove your speed limitations and experience the true power of your e-bike.
🚀 AVAILABLE NOW – Unlock Your Avinox E-Bike Speed
Extended 4.0 version featuring personal settings, on-demand activation, and an unlimited speed limit.
🛠️ Ultra-Compact & Seamless Installation
Designed with minimal dimensions, this chip installs directly into the engine compartment using original waterproof connectors to interface flawlessly with your motor, display, and speed sensor.
📱 Advanced Activation & Smart Display
Toggle your speed restriction on demand via the handlebar control buttons. The display shows your true speed up to 22.9 km/h. Beyond that, a smart readout uses the last two digits (e.g., a display of 24.2 corresponds to an actual speed of 42 km/h).
⚙️ Fully Automatic Calibration
Say goodbye to complicated setups. Calibration and adaptation to your e-bike system are performed completely automatically without any user intervention during the first time the chip is switched on or off.
🛡️ Universal Compatibility & Durability
Housed in durable black ABS plastic, the device is fully compatible with the Avinox DJI M1 motor, all available displays for this system, and the latest software updates.
Technical Specifications & Features Breakdown
Key Specifications:
- ● Motor Compatibility: Avinox DJI M1 version
- ● Speed Limit: Fully removed (Unlimited)
- ● Material: Durable ABS Plastic (Black), waterproof connections
- ● Operating Temperature: -10°C to +50°C
- ● Activation Indicators: Display reads 19 km/h for ON, 12 km/h for OFF
Frequently Asked Questions
How do I turn the tuning chip on and off?
Activation and deactivation are simple. Starting from the TURBO assistance mode, press the MINUS button to begin the combination – + – + (4 presses total). A speed of 19 km/h will briefly display for 2-3 seconds to confirm activation. To turn it off, repeat the process and 12 km/h will display.
How does the display show my speed when going fast?
When riding with the chip active, your display shows the exact, true speed up to 22.9 km/h. After exceeding this, the actual speed is indicated by the last two digits. For example, if your display shows 23.3, your actual speed is 33 km/h. If it shows 24.2, you are traveling at 42 km/h.
Do I need to calibrate the chip after installing?
No manual calibration is needed. The calibration and adaptation to your e-bike system are performed completely automatically during the very first time you switch the chip on or off.
Is this product meant for public roads?
No. The use of tuning devices that remove speed limits is intended exclusively for sports and racing purposes outside of public roads. By installing this device, riders agree to use their modified e-bike in accordance with the applicable legislation of their country.




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