Aerodynamic fairings for Busch und Muller CycleStar bicycle mirrors

Busch und Muller's bicycle mirrors are the most well engineered mirrors available for bicycles. They're sturdy and have good optics. However, like most mirrors, they present a blunt face to the wind. If you've fitted such a mirror to a fast (recumbent) bicycle or velomobile you may have wondered what effect this has on aerodynamics. The mirror may be small, but a flat face to the wind is not helpful, however small it is. On a velomobile the mirror can be quite significant as it's one of very few