IdahoMtnSpyder
Active member
Preferences have been verified to be American units. Have not verified against a GPS, but nearby traffic confirms it's at least close.
With stock tires the speedo will typically show about 3 mph over actual speed at 60 to 70 mph as checked against a GPS. This is to comply with International regulations that no vehicle speedometer indicate a speed less than actual. And based on what I have observed the native measurement system in the Spyder is metric with those values being converted to English units.