Radical 'procumbent' exercise bike says sayonara to the seat

The Martoni Cardio Speeder is presently on Kickstarter

Martoni

 If you want a really good workout, you shouldn't just be sitting around. That's at least part of the thinking behind the Martoni Cardio Speeder, a seatless exercise bike that puts the user in what its creator calls a "procumbent" riding position.