Strange Mobility: The Halfbike Pro, a Compact Bicycle with No Seat

When Bulgarian architect Martin Angelov moved into a small apartment, storing his road bike became a hassle. He subsequently designed the Halfbike, a strange-looking bicycle with no seat: Demand was there, and Angelov got the Halfbike into production following a successful Kickstarter. That was over a decade ago, and the bike has since gone through four iterations. The latest is the Halfbike Pro , which is made of aluminum and folds in half for storage: The company says the bike provides a fun workout that feels like "Running on air." It's also a bit like skiing, in that you carve to turn. They also claim the standing position promotes deeper breathing and improves circulation. Here's what it looks like in action: These run $1,300.