Photo: Gianluca Gimini

Ever tried to draw a bike from memory? It’s surprisingly hard. That’s what Gianluca Gimini , a teacher of design at the University of Ferrara, discovered when he asked friends and family to sketch their favorite whips. People forgot critical parts like rear triangles and seatposts, creating totally un-roadworthy frankensteeds. But lots of the sketches were beautiful and inventive, and Gimini decided to turn them into digital renderings as part of a project he’s calling Velocipedia. Here are some of his favorites.This one is from Leonardo, one of my students at the Università of Ferrara. You can trust me that Leonardo knows a bike has a chain and pedals!