Piaggio Group Americas, Inc. (Piaggio) is recalling certain 2017-2018 Aprilia RSV4 1000 RF, and 2017-2020 Aprilia RSV4 1000 RR and Aprilia Tuono 1100 RF and RR motorcycles. The front brake pads may corrode, potentially causing the front brake pad friction material to detach from the backing plate.