The Aprilia Mana 850 GT ABS headlight bulb size specifications indicate H11 bulbs for both high beam and low beam applications. The replacement chart covers 2009 to 2014 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H11 bulb is a single-filament halogen type operating at 12 volts and 55 watts, built to the ECE standard recognized across Europe and worldwide, with approval also granted in the United States.
The H11 uses a PGJ19-2 base, a proprietary locking connector that is not interchangeable with other common halogen bases such as H9 or H8, despite those bulbs sharing a physically similar housing profile.
The Aprilia Mana 850 GT ABS uses the H11 bulb for both its high beam and low beam headlight positions across the 2009-2014 model years.
The use of a single-filament bulb in both beam positions means each function is handled by a separate, dedicated bulb rather than a dual-filament unit serving both roles from a single housing.
Because the high beam and low beam positions share the same H11 specification, a replacement bulb of that type is physically compatible with either socket on this motorcycle.
Although the H11 bulb fits both sockets, the two positions serve distinct optical functions determined by the headlight housing and reflector design, so substituting one position's bulb for the other does not alter the intended beam pattern of each circuit.