Honda Motorcycle CHF50 Metropolitan License Plate Bulb Size

The Honda Motorcycle CHF50 Metropolitan license plate light requires a 168 bulb size for proper illumination. Data for the specified component covers the period from 2002 through 2009.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2002-2009	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Honda Motorcycle CHF50 Metropolitan uses the 168 bulb for its license plate position across the 2002-2009 model years.
The 168 is classified as a miniature wedge bulb, corresponding to the T10 form factor, which describes a tubular glass envelope roughly 10mm wide with a wedge-style base that seats directly into a socket without a separate metal base or pins.
The bulb operates at 12 volts and draws 4.9 watts, placing it in the low-wattage range typical of auxiliary and indicator lighting positions on small-displacement vehicles.
The 168 designation follows the ANSI standardization system, which is recognized across the United States and Canada, meaning physically and electrically equivalent bulbs sold under the 168 designation from different manufacturers conform to the same standard.
The T10 wedge base format is widely shared among several ANSI-coded miniature bulbs, which can create interchangeability considerations. Bulbs such as the 194 and 168 share the T10 wedge form factor but differ in wattage, so socket fitment alone does not confirm electrical equivalence.
The 168 and 194 are among the most frequently confused T10 wedge bulbs in automotive and powersports applications. The 194 operates at 3.78 watts, while the 168 operates at 4.9 watts, making them distinct specifications despite their physical similarity.
Because the 168 is an ANSI-standardized type, aftermarket and OEM-equivalent replacements are broadly available in incandescent form, and LED alternatives built to the T10 wedge base are also produced to fit the same socket.