Vespa GTV 300 Brake Bulb Size
The Vespa GTV 300 brake bulb uses a 921 size bulb for brake light applications. The replacement chart covers vehicle production spanning 2011 to 2017 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.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 2011-2017 | 921 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 |