"I take nothing for granted. I now only have good days or great days." Lance Armstrong
There are only three things that matter in fitting a bike:
- Aerodynamic Drag
And that’s the order you should address them. Comfort is the most important factor in bike fit. Power is the second most important factor. Aerodynamics is the least important, although it gets the most attention.
Research has shown that a 2% decrease in aerodynamics (2% increase in drag) can result in a 10% to 20% increase in power. This is because the proper position on the bike will be the most powerful! So, being in the most aerodynamic position isn’t necessarily the best for you. Position is an individual thing, body proportions, dimensions and flexibility determine fit and position. There is NO one good position for everyone. The course and distance you’ll be riding will also determine your best body position on the bike.
A key to bike fit is to measure both flexibility and power. Don’t try to emulate other riders with your position on the bike. Your body mechanics, flexibility and fitness determine your unique position. One that will allow you to ride comfortably and generate maximum power.
You should get your bike fit checked a couple of times per year. During the winter, your flexibility and strength are different from in the middle of the triathlon season. What works for you during the summer will be uncomfortable and limit your power during the winter.