Image Mmmm...a machined billet aluminum throttle housing. Credit Michael Lindsay Related: Marvin Musquin Red Bull KTM Vital MX Pit Bits Glen Helen Raceway MX Nationals Pro Motocross Championship 2017 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 5 of 45Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 5/30/2017 9:41am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter