Precise analysis comes with a collection of body measurements!


Everybody is custom, the bicycle must be a continuation of the cyclist. Using a quantitative scientific method we match the bicycle geometry to the cyclist. Maximum performance will be achieved with a precision custom-fit bike.

It took many years of testing to develop our software. The primary aim was to provide techniques that support and provide protection to soft and hard tissues without limiting their function. It is extremely important to have some basic knowledge of underlying body structures (e.g. joint and muscle structure) and how a mechanism works in defense and protection from excessive or repeated stresses. Cyclist of all ages and abilities are subject to constant mechanical forces which the body must be prepared to absorb.

The energy that is generated by the muscle has a very small value and is measured in millionths of a volt (microvolts). It was necessary to use very sophisticated and sensitive instruments to amplify these signals so that they could be seen and heard. Without these tools we would have had to go by outdated concepts and ways to fit you on your bike.


We used the very best tools known. Force plates to read the forces under the foot, EMG (electromyography) to study muscle function through the inquiry of the electrical signal emanating from the muscle. New technology allowed us to observe synergies in the energy patterns of muscles that cannot be seen with the naked eye. We observed muscle energy at rest and as it changed continuously over the course of a movement. It should be pointed out that simple visual observation of posture and movement, even with watts readings, do not yield the same resolution of information as our EMG recordings. Our data reveal the performance of each muscle, allowing superior assessment of effort. These analyses have shown that even subtle changes in postion or pedaling technique can have a large effect on inclusion or exclusion of major muscle groups.

To consider the human motor outside the context of a very complex and interdependent system is not fair. Without having the connective tissue providing the “sacs” for muscles fibers, the muscles would not be organized into a meaningful direction of pull, nor would they be anchored to the bones, and their actions would not produce movement for your body. Add to that, without a digestive system, how would there be glucose for the body to burn. Not having lungs, there would be no oxygen needed for cellular respiration and make the gas for the muscles-ATP. Without the circulatory system, these vital substances would not find their way to each and every cell, nor would their waste products be carried away. And if you did not have a nervous system, the muscle cells would not know when to fire or how to orchestrate their firings with other muscles cells to do what you want them to do. Of all these systems, muscles use more energy than any part of the body.

There are millions of muscle cells called myofibrils and for these cells to do their work, they have to shorten from their resting length via a process of cross-bridging, a ratcheting action of myosin fibers against actin fibers. Finding this range of motion is key for using more of these muscle fibers. Get it wrong and you waste energy! No matter how much effort you use from your mind, they will not work. If a particular structure is stretched beyond it’s “normal” length, the tissue is more than likely to tear partially or completely or compress something, leading to discomfort.

Our product is a quantitative solution to place your body and its muscles in its their best position!!!

By taking precise measurements of the bike rider’s anatomy and obtaining the correct bike geometry, Wobble-naught provides you with the best “range-of-motion” and best “line-of-pull” for your muscles to perform work. Our system is based in CAD (computer aided design) technology.

What is a precision fit?


There are many systems that make statements that they are performing a “precision fitting”. A precise measurement can not be obtained by taking general measurements while standing, e.g. inseam standing or upper body measurements while standing. You can’t just cross over a joint to find a length, for instance two people may have the same length legs but the length of their lower legs and upper legs may differ. All joints have angles and simply crossing over any joint to guess for a total extremities length doesn’t take into account the joint angles.

Professionals who have studied human anatomy know this fact. Upper and lower legs are not the same shape or length on everyone, nor does everybody have the same joint angles. Joints contain cartilage, ligaments, and tendons and they can get damaged if not considered. To be called a “Precision fitting” you have to precisely measure each length between joints. Mass marketing or wording attempting to sell bikes by sizing alone can be misleading. Sizing a bike is not the same as fitting a bike!

Why get a Wobble-Naught fit?

There’s no better methodology for measurement of the human body, we unveil details of performance that can’t be discerned by just looking at someone on their bike. By taking into account precise measurements of the foot, legs, hips, spine, shoulders, and arms we provide precise alignment for a total body fit. This process provides perfect cleat placement, saddle fore/aft, saddle height/tilt, stem rise/length needs, and handlebar position, the end result is pure comfort!

A Wobble-naught fit keeps bikers riding longer, faster, and more comfortable than they thought possible. Our solutions were developed through the use of computer aided design technology (CAD) and precise measurements of anatomy to make the bike an extension of the cyclist. There is no better fit!