Riese & Müller is a bicycle manufacturer in Darmstadt, Germany founded by Markus Riese and Heiko Müller. It designs and makes suspended bicycles. Frames are produced by companies such as Pacific Cycles, Taiwan. All of their bikes are assembled by hand in Germany. Riese & Müller was founded in 1993 to sell Hot Ears, earmuffs to keep the ears warm while wearing a helmet. The first bicycle, the folding bicycle known as the Birdy, started in the garage of Heiko Müller's parents as a university project. Riese & Müller had a revenue of €76 million a year. In 2006 it started selling Zwei bike bags. Other models produced by Riese & Müller are: Charger3 Mountain Climber Packster 70 Multicharger Mixte Roadster Nevo3 Cruiser Mixte Birdy (a folding bike with 18" wheels) Frog bicycle (a folder with 12" wheels, discontinued for years but available with 16" wheels as of 2010) Avenue Culture Equinox (discontinued) Gemini (discontinued) Homage (since November 2005) Intercontinenta e-bikes Delite, Charger, Nevo, Swing, & Tinker See also List of electric bicycle brands and manufacturers Outline of cycling References External links History of Riese & Müller and the Birdy Companies based in Hesse Cycle manufacturers of Germany Folding bicycles Cycle designers German brands Cycle types Bicycle Electric bicycles History of cycling Micromobility Electric Road cycles