Monitoring speed, distance, rpm, acceleration, g-forces, fuel consumption, mpg, and recording it all, hundreds of times a second, the Veypor VR2 motorcycle computer is the key to allowing a rider to learn to ride more efficiently. The rider can see their average fuel consumption (in mpg) in real time, and adjust their driving patterns accordingly.

Sensors

Three internal accelerometers combine with an rpm sensor and a speed sensor to give reams of data about the bike.

A magnet on the rear wheel transmits distance travelled and therefore accurate miles per hour as well (far more accurate than a traditional mechanical speedometer)

And a Hall Effect sensor located on the flywheel of the diesel engine records a signal with each rotation, giving RPM.

Normally these computers work with gasoline powered bikes and record RPM via the electrical spark of the sparkplug. A special sensor had to be designed, built and installed on this bike to record rpm on an engine that requires no electrical power to run!

In the picture below, the wire runs to the sensor located just above the engine's flywheel. A magnet mounted in a hole drilled in the flywheel trips the sensor, once each revolution.