Honda Motorcycle VT1300CS Sabre Turn Signal Bulb Size
Honda Motorcycle VT1300CS Sabre front turn signal bulbs use P21/5W size while rear turn signal bulbs use P21W size. The replacement chart covers 2010 through 2014 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle VT1300CS Sabre uses two distinct bulb types across its turn signal positions for the 2010-2014 model years: P21/5W at the front and P21W at the rear.
The P21/5W is a dual-filament bulb rated at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base.
The BAY15d base features offset pins, which physically prevents it from being inserted in the wrong orientation, a design that also distinguishes it from single-filament bases.
The P21W is a single-filament bulb rated at 12V, 21W, and uses a BA15s bayonet base with symmetrically placed pins.
Because the P21/5W and P21W use different base types, BAY15d and BA15s respectively, the front and rear turn signal bulbs on the VT1300CS Sabre are not interchangeable with each other.
Both bulb types conform to ECE standards, a regulatory framework recognized across Europe and numerous other markets worldwide.
The dual-filament configuration of the P21/5W front bulb allows it to serve more than one lighting function simultaneously, which is why it is rated for two wattage levels rather than one.
The rear position uses the P21W exclusively across all five model years covered, indicating a single-function application at that location.