Retul - 3D Custom Fitting


Retul bike fit technology incorporates three main data points in fit theory:

Bike Fits Must be Dynamic

Most bike fitting specialists fit riders in a static position. This is because the traditional tools of the trade - tape measures and plumb bobs - do not allow accurate measurements while the rider is pedaling. Using motion capture technology, Retul records the rider's positions in motion, therefore creating the most realistic picture of the rider's actual pedal strokes and body positions when out on the road and trails.

Measurements Must be Accurate

Measurements made by traditional tools have one thing in common. They are subject to human error and therefore can be devastatingly inaccurate. Even slight inaccuracies can drastically change the rider's feel after a ride. The Retul system is accurate to within less than a millimeter, creating true objective data which can be utilized by the fitter for the perfect biomechanical fit.

Biomechanics are Best Assessed in Three-Dimensional Space

Fit data collected in a traditional two-dimensional plane (i.e. video-based systems) is fairly limited because the fitter can only look at one view at a time, and those views stand as independent reference points. In order to make the best fit recommendations, the fitter must realize that the front and side views are actually interdependent reference points. In other words, the front and side views must be viewed simultaneously in three dimensions in order to see how all the applicable movements of the body are working together. Retul uses a 3D motion sensor to simultaneously gather data on multiple angles of the rider.

The retul technology


Inspired Cycling
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