The KTM Freeride E-XC headlight bulb uses HS1 size for both high beam and low beam functions. The replacement chart covers 2020 to 2022 production 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 KTM Freeride E-XC uses the HS1 bulb type for both high beam and low beam headlight positions across the 2020-2022 model years.
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.
The HS1 operates at 12 volts with a power rating of 35W for each filament, giving it a 35W/35W output designation.
The HS1 uses a PX43t base, which is a bayonet-style fitting specific to motorcycle headlight applications and is not interchangeable with common automotive bulb bases such as H4, despite the H4 also being a dual-filament halogen type.
The HS1 is governed by ECE (Economic Commission for Europe) standards, making it a regulated specification used across European and worldwide markets rather than a proprietary or market-specific format.
Because both the high beam and low beam positions share the same HS1 specification, a single bulb type covers both functions in the headlight assembly.