Frog Design is better known for its work designing computer cases for Apple, but  in 1985 Frog Design’s Founder Hartmut Esslinger designed the Frog FZ750. A two-wheeled concept vehicle that was a Yamaha FZ750 underneath the skin, the Frog FZ750 actually helped give birth to the venerable Honda Hurricane.

Conceived just a few years after Frog Design opened its California office, the now iconic Frog FZ750 was a reaction to increasing pressure for safer motorcycles (the Yamaha FZ750 was outlawed in the Golden State at the time), and set the standard for a generation of motorcycle design to come.