On certain motorcycles, a sudden difference in speed between the engine and rear wheel could damage the gearbox input shaft or cause it to break. If this happens, the rear wheel could lock up while riding.
Safety Risk
A rear wheel that locks suddenly could cause a loss of control and increase the risk of a crash.
Corrective Actions
BMW Motorrad will contact owners by mail and instruct you to bring your motorcycle to a dealership to update the engine management software.