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 completely change a rider’s position and adversely affect their performance. Unlike those traditional tools, Retül is a computer driven fit system that uses infra-red LEDs (light emitting diodes) to accurately determine a rider’s optimal fit on their bicycle. Retül uses 3-D motion capture technology that is accurate to within less than “1 millimeter”, creating true objective data which can be utilized by our certified bike fitter to give you the perfect biomechanical fit.
Retül is Fast
The system flashes an LED every 2.1 milliseconds. That's 476 times per second or Hertz. The system takes a full set of body measurements every 34 milliseconds. That's 29 full sets of body data per second. The award winning software processes all of that data in seconds, synchronizing the eight data points tracking them across longitudinal, vertical and horizontal planes.
Retül is Synchronized
Synchronization yields body location intelligence. The receiver knows what LED is flashing and where it is on the body. The software automatically, by skeletal position, identifies the proper LEDs for the measurements of each marker's position. There is no post-processing needed with Retül's software, so our 3D reports are accurate and are generated immediately for viewing.
Biomechanics are Best Assessed in 3-Dimensional Space
Fit data collected in a traditional 2-dimensional plane 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 view are actually interdependent reference points. Retül uses 3-D views to see just these precise mechanics to be able to see knee extension (from side view) in relation to knee wobble (from front view) in order to make the best decisions on adjustments.