OEM Harley Centerline Sweep Wing Floorboard Inserts NOS Dyna Touring FLH GlideOEM Harley Davidson Centerline Sweep Wing Floorboard Inserts NOS Dyna 50537 07 Part #: 50537 07 The Harley Davidson part number 50537 07 refers to a pair of Centerline Passenger Swept Wing Footboard Inserts. The inserts are designed to fit into passenger footboards and typically feature a black and chrome or black and rubber finish. Design: These are "swept wing" style inserts from the "Centerline" collection. Material: The inserts combine chrome and