Speed Master Air 4:Tuning Kit For Xiaomi Pure Air 4 Series Electric Scooter

Speed Master Air 4 Modified Speed Regulator Controller for Xiaomi Pure Air 4 Series Electric Scooters (25mph)

Key Features

Perfectly Matched for Pure Air 4 Series
Designed specifically to fit and function with Pure Air 4 and Pure Air 4 Pro, ensuring full compatibility with motor and battery specs.
Unlock Higher Speeds
Break past the factory limitations and ride at speeds of up to 40 km/h (25 mph). Easily switch between speed modes (20 km/h, 25 km/h, or full speed) depending on your needs.
Smartphone Control via Bluetooth
Access smart features directly from your phone:
→ Fine-tune speed settings
→ Lock/unlock your scooter
→ Enable anti-theft mode
→ Monitor real-time data and diagnostics
Plug-and-Play DIY Installation
Includes everything needed for a hassle-free setup — upgraded controller, display, adapter cables, and step-by-step instructions. No soldering or advanced skills required.
Flexible Installation Options
Set it up yourself in under an hour using basic tools, or take it to your local repair shop for a professional fit.

Easy Installation

No soldering required, and no special tools necessary. With basic mechanical skills and patience, most users can complete the upgrade on their own. A step-by-step installation video and written instructions are included.
Click to open the tutorial: Installation

App Integration

Pair your kit with the SpeedMaster 365 app for advanced settings and real-time monitoring. Via the app, you can:
Adjust speed limits
Set motor pole pairs and wheel diameter
Switch between battery configurations (10S or 12S)
Monitor live data and diagnose errors
For optimal performance and correct speed display, accurate settings (e.g., tire diameter, motor poles, tire pressure, and battery status) must be entered during setup.

Self-Learning Motor Calibration (Required)

The SpeedMaster V4 controller includes a motor auto-learning process to ensure compatibility with your scooter’s motor specs.
To initiate self-learning:
1. Make sure the scooter is powered off and placed on a flat, stable surface.
2. Hold the power button for about 10 seconds.
3. The wheel will spin slowly forward, then backward.
4. A “beep” sound indicates successful calibration.

Specifications:

.Material: ABS+electronic components
.Product Weight: 300g
.Package Weight: 400g
.Package Dimensions: 15 x 11 x 5cm
.Packing: Graphic Carton
.Ages: 16+