1. Speedohealer v4
Very simple and easy to install on my 2016 FZ09. All completely plug and play. Total install took maybe 5minutes and so small it hides very easy under the seat.
The app makes programming very easy also
If your installing on a FZ09 there is no reason to remove the tank since the speed sensor is on top left of the engine by shifter shaft. You can reach right in the frame and unplug the connector. Didn’t even get my hands dirty.