Colnago production process implies intensive use of prototyping technologies. Before realising the final model, we analyse specifications and different variables through samples and lab tests. The first visual and dimensional analysis is made through visual prototyping software, which allows us to evaluate inferences and evaluate if what we could do in the production phase. After that we go to the rapid prototyping phase, for a “real” visual analysis and a second dimensional verification. We use 3D printing machines and we realize samples in resins and plastic powders. Once validated the visual sample, we realize several bike samples with different features in order to further test them in lab and on the road.