For the best look, one's clothing must fit. That same logic applies to a person's bicycle. But the reasons have a far more to do with comfort and efficiency than style.
According to Kurt Rosenquist, with Fitworks Cycling Support, a bike that properly fits the rider, "allows you to stay comfortable, minimize the chance of injury, be most efficient so you can go faster or further, or really just meet your cycling objectives."
Rosenquist said the same principles apply whether you are a bicycle commuter, professional racer, or just an occasional rider.
"You're just trying to get your energy into the bike most efficiently without the bike more or less getting in the way, and get the bike set up so you are not wrestling with it, where its tugging you out of the right position or pushing you into the wrong position, or also trying to reduce drag or wind resistance as best you can," he said.
Factors, such as the height of the saddle, the distance of the seat from the handlebars, and the angles of one's torso and legs can all change the dynamics of a ride.
"If the balance is off, or the weight distribution is off, or you are reaching to get the job done somehow, or you are teetering somehow on the edge of it feeling uncomfortable, or not, and just as you start going a little harder, something has to give," he explained.
And that something could be a comfortable ride, or even an injury.