Our throttle control assembly for the Motovox MBX10 and MBX11 mini bikes is a handy combination assembly The throttle cable housing is used on the right-side handlebar and is used to join the throttle cable, right handlebar grip, and the on/off switch Our throttle control assembly for the Motovox MBX10 and MBX11 mini bikes is a handy combination assembly. The throttle cable housing is used on the right-side handlebar and is used to join the throttle cable, right handlebar grip, and the on/off switch. Plus, we include the throttle grip.