Koso RX4 unlimited

RX-4 | Multifunction TFT Meter

The RX-4 Multifunction TFT Meter is the ultimate solution for motorcyclists looking for a modern, feature-packed, and easy-to-read instrument. With a speedometer, odometer, voltage meter, air-fuel ratio display, clock, and stopwatch, it provides all the essential information for your next ride.

Thanks to Bluetooth connectivity, the RX-4 allows you to view incoming calls, music information, and more, setting it apart from traditional meters. The large, user-friendly TFT display ensures clear and organized information presentation.

Main Features at a Glance

• High-Resolution TFT Display with multiple display modes
• Bluetooth Connectivity for call & music info display
• Comprehensive Vehicle Information: Speed, RPM, temperature, voltage & fuel
• Advanced Measurement Functions: Shift light, oil maintenance, A/F ratio measurement
• Compatibility with iOS & Android

Technical Specifications

Speed & Odometer

• Speedometer: 0 – 225 MPH (0 – 360 km/h), switchable between MPH & km/h
• Odometer: Up to 999,999 km
• Trip Odometers 1 & 2: Up to 9,999.9 km
• Low Fuel Range: Up to 999 km
• Oil Maintenance Interval: 300 – 10,000 miles (500 – 16,000 km) with warning display

RPM Meter & Shift Indicator

• RPM Ranges:
  • 0 – 10,000 RPM
  • 0 – 12,500 RPM
  • 0 – 15,000 RPM
  • 0 – 18,000 RPM
• Shift Light (adjustable):
  • 1,000 – 10,000 RPM
  • 1,000 – 12,500 RPM
  • 1,000 – 15,000 RPM
  • 1,000 – 18,000 RPM

Temperature & Warning Systems

• Overheat Warning: Adjustable from 60 – 250 °C (140 – 482 °F) with flashing red display
• Max Temperature Recording: 0 – 250 °C (32 – 482 °F), manual reset available

Voltage & Fuel Monitoring

• Voltmeter: DC 8.0 – 18.0 V
• Low Voltage Warning: DC 8.0 – 13.0 V (display flashes red)
• High Voltage Warning: DC 13.1 – 18.0 V (display flashes red)
• Fuel Gauge: 6 levels
• A/F Ratio Meter: Range 12.1 – 17.5 (requires adapter cable BO002001 & A/F sensor BG000S01)

Target Speed & Distance Measurement

• Target Speed: 0 – 225 MPH (0 – 360 km/h)
• Target Distance: 50 – 1,500 m (1/32 – 30/32 mile)
• Max Speed & Track Record

Smartphone Connectivity & Functions

• Bluetooth Functions
  • Compatible Operating Systems:
    • iOS: Version 5.0 and above
    • Android: Version 9 and above
  • Phone & App Notifications
    • Incoming Call: Displays name or number (up to 12 characters)
      • iOS: Name or number
      • Android: Only number
    • Incoming Online Call (LINE, WeChat, WhatsApp)
      • iOS: Supported
      • Android: Not supported
  • Music Information
    • Song title (up to 15 characters)
    • Artist name (up to 18 characters)
    • Total time & current playtime (iOS only)

The RX-4 Multifunction TFT Meter is a cutting-edge, smart & powerful solution for motorcyclists seeking more than just a standard gauge. With extensive measurement functions, smartphone connectivity, and a stylish TFT display, it takes your vehicle to the next level.