Why Retul?

Retul is not a philosophy.

It’s a data collection system allowing you to impart your philosophy onto your client. Like a 78° seat tube angle for your triathletes? Retül will allow you to nail that number — every time.

Our goal is not to provide specific bike fit recommendations, but to provide the most realistic and accurate data for the fitter to make the best decisions with regard to adjustments of a cyclist’s position. In essence, whatever your fit philosophy may be, you can still use retül to your benefit.

State of the art bike fit technology incorporating three main data points in fit theory:

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 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

It’s Portable… take it to a race or to multiple shops

It’s Space Friendly… all you need is a fluid trainer and a laptop

Becoming a Retül Fitter will help your business:

• Happier and Returning clients with better fits to their bikes

• Develop a reputation as the shop with bike fit experts

• Increased average sales (frames and extra parts)

• Advantage over competition

• Access to retül fit research database — with secure login (coming soon).

• Continuing Education from our panel of bike fit experts

Learn more! Contact us today!