Planning the design intent
The first step we need to think about is the design intent so that we know what to expect out of this project and not stray from the path while we work. Since the bike’s handlepost is a static object (meaning it’s not going to change thickness), I could potentially create the bicycle handlepost with simple primitive shapes. For instance, I could use a simple cylinder for the handlepost and another cylinder for the handlebars. The only problem with that is my handlebars do change height, so I will probably need to use parametric objects so that they can change heights. I will show you both ways so that you can see the benefits of both.