The Aprilia RSV4 RF uses H7 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2015 through 2019 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 is a single-filament halogen bulb operating at 12 volts and 55 watts, fitted with a PX26d base, which is a two-pin bayonet-style connector designed to secure the bulb in a fixed rotational position within the housing.
The Aprilia RSV4 RF uses the H7 bulb size for both high beam and low beam headlight positions across the 2015-2019 model years.
Because both beam positions share the same H7 specification, the two housings accept physically identical bulbs, though the optical assemblies themselves are calibrated separately for each beam function and are not interchangeable.
The H7 bulb carries ECE certification, meaning it meets the lighting and photometric standards used across Europe and numerous other markets worldwide, and it also holds approval in the United States and Japan.
Single-filament construction means each H7 bulb serves only one beam function, which is why separate bulbs are required for the high and low beam positions rather than a dual-filament unit handling both from a single housing.
The PX26d base is a standardized fitting, so H7 bulbs from different manufacturers are dimensionally consistent and will seat correctly in any housing designed for that base type.