https://newatlas.com/carpii-4-wheel-bike/54904/
Carpii's wacky 4-wheel stepper bike raises eyebrows
Jun 5, 2018 - Here's an odd little commuting curiosity from Romania called the Carpii 4ciclet. It's a four-wheeled stepper cycle targeted at older riders that transfers most...
wackywheelstepperbikeraises