Not really true but may depend on the make of indicator. The one that I have on mine just needed a digital pulse for the speed (already done with my gauge) and the rpm feed. It compairs the 2 and depending on the speed v's rpm ratio gives you the gear. At low speeds takes a little time to update and sometimes gives false readings (I'm guessing because the gears are so close) but was useful when I first started. Now I've riden the bike long enough to know from from the sound / rpm and the speed to know which gear I'm in so never look at the indicator anymore..MadMax said:I wanted one awhile back, but was told they only work on fuel injected bikes.
MattyE,Matty E said:I'm in Australia so the same as the US ones (carbs).. As far as I know the only difference between the US and Oz ones are different sprockets..