FAQ's PAGE 5
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8. Flexibility. For those riders who are more flexibile or for those who get more flexibile as fitness increases, is a more aggressive position (i.e. lower bars, longer stem) without any loss of power or efficiency is possible?
(Please see question 2)
It is not because we are more flexible than one must choose a more extended position or a more “aggressive” set-up. Yes, it is possible that the cyclist feels o.k. while being more stretched-out but this should not determine the good position. The rider is incapable of perceiving what is happening across his/her entire physiological make-up, i.e. the rider cannot see if blood is flowing optimally, and may feel “good” while actually producing a negative physiological effect and net loss in performance/health terms.

9. Does the CPS assume that both legs are the same length? Can it address the fact that I may have one leg longer than the other?
(Please see answer to question 3)
Also, the CPS does not assume that both legs are of equal length; by drawing upon the vast research and study in the medical/scientific community, we already know that the body is naturally asymmetrical. Moreover, the body adapts to the various asymmetries in order to function properly. Only in pathological cases (less than 0.9% of the population) does a true leg length discrepancy enter the mix. Even so, the focus must be on looking at the individual’s comprehensive case. If the only effort is to look at the leg length without taking into consideration the entire picture then additional harm will occur.

10. I sit on the saddle differently than other riders I see. Is this considered?
Anatomically speaking, all people should sit on the saddle in the same fashion. Yes, we are each unique but our anatomic structure demands that proper saddle position is the same across all individuals. The pelvis on one person may be wider than another and, for that reason, it is important to find the proper saddle width for you. But, the way a rider should sit on the saddle properly is established via evidence from the medical and scientific community. Today, for each saddle there is an optimal zone of support which provides stability for the ischion (sit bones) and improves comfort (without damage to soft tissue or decrease in blood flow to critical areas).  However, it is true that the position of the pelvis on the saddle can vary enormously when the cyclist is badly positioned on the bicycle which leads to differences in how a rider sits on the saddle. There will be some slight fore or aft position change when the rider is on the top of the bars, the hoods, or the drops but it is important to limit the deltas between these positions (using a bar that has a reach less than 110mm and a drop less than 170mm). And, it is important to consider which levers are being used (Campagnolo, Shimano, SRAM) as lever lengths change among each platform and can increase your reach by 1.5cm in the case of Shimano!. The position defined by the CPS is based on the zone of support for each saddle make and model and is determined to provide the best stability and least amount of movement while seated.

11. How is pedaling style, i.e. heel down/toes down/flat-footed, taken into consideration?
The only loco-moteur activity that human being does innately is walking. Just like pitching a fast-ball and developing the proper golf swing, the pedal-stroke is a 100% learned action. There is no “natural” way to do it and, as such, the motion and physical coordination can be acquired. There is a proper technique that optimizes efficiency and this is proven using the proper measuring devices, kinematic, and cinematic studies as employed in the foundation of the CPS. Each rider may have a unique "style" in that your knees will move based on the natural predisposition your body has but any different pedaling technique is an error of positioning and poor technique in the pedal-stroke.  Example:  If your saddle is positioned too high, you pedal with your toes down and conversely, if your saddle is too low you will drop your heel. With a correct positioning of the saddle in terms of height and set-back, you must be able to articulate the ankle in an optimal way. The CPS result guarantees that you will be properly positioned to have the optimal pedal technique.

12. What is the importance of having a flat back?
(please see question 2). 
Everyone is built differently and trying to get a flat back both not possible and no indicator of being properly positioned. While some riders have anatomic traits that allow for this, it's not a rule to follow. Being able to tolerate a position that is very "laid-out" just to get a flat back does not mean that it is the good position.  Indeed, for various reasons certain individuals are able to tolerate a very laid-out position without having problems of comfort. However, these individuals deteriorate their output, their effectiveness, the transfer of power to the zones of transition, limit the blood and pulmonary oxygen circulation, etc....They cannot feel the physiological constraints happening inside their bodies and conclude that they are able to function well while maintaining an aggressive position.  The only way to understand the impact is to view the athlete in a comprehensive fashion with “energetic costs” being ascertained as we completed via the CPS research.

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