Morning guys. Does anyone know if there is a way of telling if a set of r1 clocks are off a 4xv or a 5jj engine? ie. does the part no on the back state 5jj or 4xv? need some for my new engine arriving very soon!

4xv look like this
Link

square buttons and a different lcd panel for the temp etc.


5jj look like this
Link


- Jim

Thats great thanks jim.