1. Universal size fits most motorcycles (please measure before purchasing) 2. Lightweight and portable round design with black dial and LED backlight 3. Built-in nightlight and full-range red indicator light for clear real-time speed reading 4. Universal mechanical speed cable connector 5. Cable connections: - Long red wire - positive (backlight); long black wire - negative (backlight) - Short green wire - negative (speed) - Short black wire - positive power supply or positive ignition key - Short yellow and black wire - positive engine sense wire, ignition wire, or ignition lead to high-voltage transformer 6. Long wire: approximately 260mm 7. Short wire: approximately 50mm 8. Mounting hole diameter: 10mm 9. Dimensions: 66x70x56mm
