What RPM on tach=what speed
I just got a tach put on my bike (80cc).
I have a speedometer on it too.
I would like to get some input from everyone..
I am trying to see if the tach is reading the right RPM's.
What is a good benchmark. (25MPH=5000PRM)
My front sprocket is what came stock in the kit, and my back sprocket is 40tooth.