Cleaning: Use only a microfiber cloth and lukewarm water with mild dish soap.
Drying: Pat dry rather than rubbing to avoid "swirl marks" from dust particles.
Wind Deflection: At speeds over 60 km/h, wind resistance creates a "sail" effect on your chest, causing muscle fatigue. A visor pushes that air over your head.
Debris Protection: It acts as a shield against pebbles, road grime, and large insects that would otherwise hit your face or helmet.
Aerodynamics: It streamlines the bike's profile, which can slightly improve fuel efficiency and stability at high speeds.
Reduced Fatigue: At highway speeds, your neck and core muscles work overtime to keep you upright against the wind. A screen does that heavy lifting for you.