I was decelerating on the approach to a speed camera,and when I glanced down at my speedo,it was showing 30mph,altho I wasdropping my bkie into firsst gear.(I nearly always go down thru the gears when I got time in traffic flow,)and braking! Brings to the fore a question,namely,just how do the speedo's work? It was the first thing to die when my regulator fried.Is this the early warning sign of a regulator on the way out,or just a glitch?didnt notice it before,and havent seen it since.Anybody???