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Retul Fit

State of the art bike fit technology incorporating three main data points in fit theory: Check out the Retul Video

Bike Fits Must be Dynamic

Most bike fit specialists fit riders in a static position. This is because the traditional tools of the trade — tape measures and plumb bobs — don’t allow accurate measurements while the rider is pedaling. Retül captures the rider’s position relative to his or her pedaling motion, and therefore creates the most realistic replication of the actual pedal stroke and body position 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 completely change the rider’s feel after a ride. The general rule is that if you feel pain, something can probably be changed to eliminate that pain. Retül uses motion capture technology that accurate to within less than a millimeter, creating true objective data which can be utilized by the right fitter for the perfect biomechanical fit.

Biomechanics are Best Assessed in 3-Dimensional Space

Fit data collected in a traditional 2-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 view are actually interdependent reference points. In other words, the front and side view must be viewed simultaneously in 3-D in order to see how all the applicable movements of the body are working together.

Retül uses 3-dimensional 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 to the cyclist.

How it Works

Using eight (8) anatomical LED markers strategically placed on the wrist, elbow, shoulder, hip, knee, ankle and ball of the foot, the retül sensor gathers information in real time and transmits it to the PC. In real time.

  • It’s Accurate…to under a millimeter
  • It’s Objective…no human error
  • Wheel Werks was the first and one of only two to be certified in the mid west at Retul University

Cost is $250 and takes 2-2.5 hours Done by appointment.