Honda Motorcycle NPS50 Ruckus uses HS1 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 2003 to 2020 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 Honda Motorcycle NPS50 Ruckus uses the HS1 bulb type for both its high beam and low beam headlight positions across the 2003-2020 model years, with the exception of 2010, for which no data is listed in these specifications.
The HS1 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments, one serving the high beam function and one serving the low beam function.
Because both headlight positions on the NPS50 Ruckus use the same HS1 bulb, a single bulb type covers the full headlight assembly rather than requiring separate part numbers for each beam function.
The HS1 bulb operates on a 12-volt electrical system and carries a 35W/35W wattage rating, where the two values correspond to the low beam and high beam filaments respectively.
The HS1 bulb is built to the ECE (Economic Commission for Europe) standard, a regulatory framework widely adopted across Europe and many other markets worldwide for vehicle lighting equipment.
The HS1 bulb uses a PX43t base, which is a bayonet-style mount specific to motorcycle headlight applications. This base type is not interchangeable with common automotive halogen bases such as H4, despite the H4 also being a dual-filament halogen bulb.
The PX43t base on the HS1 includes a locating tab that positions the filaments at a precise angle within the reflector housing, making correct orientation a factor in proper beam pattern performance.
The consistent use of the HS1 across all listed model years of the NPS50 Ruckus indicates that the headlight housing and electrical connector remained unchanged throughout that production span, which is relevant when sourcing replacement bulbs for any of those years.