AC Dyn90

ACDyn 90 is the first dynamometer of its kind and was custom built for Joe Gibbs Racing Motocross. The ACDyn 90 utilizes an AC (electric) motor, specialized variable-speed drive, and high speed data acquisition; features that allow it to replicate exact engine RPM and throttle position for any racetrack and rider combination. The ACDyn 90 eliminates outside variables by isolating the engine from the motorcycle to perform very precise tests.