Is there an easy way to test it, mate has a hoist I can throw it up on if need be, but would prefer to do it with a multimeter, have had a look around on Youtube but for the glanza seems difficult could anyone upload a clip that works for the starbo or photos of their own vehicle with it being done. Im pretty sure you need a hertz reading function. Doing the math with tire diameter, I know I should be getting 2900rpm. Once again thanks for the knowledge. cheers