noun
fairing
FAIR-ing/ˈfɛrɪŋ/
A smooth covering that reduces drag on a vehicle or aircraft.
The motorcycle's fairing guides air smoothly around the rider.

Etymology
In shipbuilding, to fair meant to make a surface level or correct its curves. A fairing names a piece added to give a vehicle a smoother, streamlined outer shape.
In context
i bought a fairing and i did a thing let's put it on the bike
More examples
- A streamlined fairing covers each wheel on the small airplane.
- She replaces the cracked fairing on her motorcycle.
- The truck's roof fairing reduces wind resistance around the trailer.
Forms
fairing · fairings
fair verb — To smooth or streamline a surface.
Similar words
- cowling
- Specifically an engine cover, rather than any streamlined covering.
- shroud
- A protective covering that need not have a streamlined shape.