First and foremost, each bike is tailored to your body dimensions as well as your personal preferences. I carefully review all of your body measurements when designing a frame. I also ask about the current and previous bikes that you have ridden in order to establish a fit baseline for your new bike. I ask about your previous bikes because no two people have the same preference for position, even if they have the same body dimensions. Because of this, it’s important to start the process with a good understanding of what you like and don’t like. Some cyclists prefer to sit up and enjoy the view on a scenic country road, while others need to be in the most aerodynamic position in order to stay with the group on a fast paced club ride. Differences in pedaling technique, flexibility, core strength, and experience will also determine the way he or she sits on the bike.
The geometry of your bike relates directly to how your new bike will handle and respond to your input. Geometry is not related to fit, but to a cyclist’s positioning and weight distribution between the front and rear axles. Center of gravity is also an important consideration. I have my own take on bicycle geometry and I will discuss with you the various trade offs for each numerical decision. However, it’s important not to focus on one or two measurements of a frame, but rather how they will interact with each other.” –Erik Rolf. Photo: alliancebicycles.com