Description: Waterproof, sun-proof, durable. Shockproof: Confirm the stability of electronic component Professional structure design makes the ecellent performance on waterproof. Fitment: Fits for most motorcycle that is with 4 stroke, 2 / 4 Cylinders (default as 1 cylinder of the setting). Specification: Working voltage : 8-18V Rated voltage: DC 12V Working temperature: -20 - +70 °C Storage temperature: -30 - +80 °C Digital display speed range: 0-199km/h (error +10%) Needle display rpm range: 0-12000rpm (error +5%) Digital display odo distance range: 0-99999.9km Backlight: Blue Installation diameter: 9cm Height: 5.3cm Cable Length: 12cm Package Includes: 1 Piece Motorcycle Odometer Speedometer 1 Piece Sensor 2 Pieces Magnetic steel Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you