AERODYNAMICS have preoccupied bicycle designers since the early part of this century. The most advanced bicycles today are deployed in track racing ... it can also lead to significant side forces.

Following is a transcript of the video. These e-bikes are made from repurposed parts. They look far from your everyday e-bike. Meet Jarrett Carter. His rat rod-style bikes are a hit on Instagram.

Bernard started work as a bicycle mechanic until he realised that he could make many more things from the spare bicycle parts ... But it's not just bicycles. The windmill operated washing machine ...