United States 99V316000
Aprilia USA, Inc.
The problem
VEHICLE DESCRIPTION: MOTORCYCLES. THE FASTENERS HOLDING THE REAR DRIVE SPROCKET COULD COME LOOSE.
Risk
THE REAR SPROCKET COULD DROP OFF OR THE DRIVE CHAIN COULD COME OFF OR JAM, RESULTING IN A LOSS OF CONTROL OF THE VEHICLE.
What owners should do
DEALERS WILL TIGHTEN THE SPROCKET SCREWS SUFFICIENTLY.
Units 289