Processing customization No Model 256 Material Metal name: Harley retro meter odometer instrument motorcycle rear LED backlight speed odometer material: metal Input voltage (V): 12V DC odometer measurement: 0??160km/h Mounting hole diameter: 10mm applicable Model: Harley-Davidson high-brightness LED backlight internal small odometer, internal night LED light color: black, silver weight: 0.23kg wiring connection: red: backlight black: ground (power supply negative) blue: headlight green: neutral position Neutral gear yellow: left and right turn signal