Closeout Bicycles

Whether you are looking to be fit on your current bike or find the exact measurements for your next bike the Retul 3D motion-capture fitting system is your chance for the best bike fit in the State.  Bike World and Zoom Performance have the only Retul system in the state of Iowa and maintain a Certified Retul fitter.


What is Retül Technology?

Retül technology is a cycling-specific motion-capture bike fitting system designed to provide qualified bike fitters highly accurate and comprehensive bike fit data. The system incorporates three-dimensional measurement, immediate report capability, and a millimeter-specific digitizing tool to provide the most accurate dynamic fitting solution in the industry.

The goal of Retül technology is to assist bike fitters in making objective and accurate fit decisions, as a proper bike fit is one of the single most important factors for optimal performance and efficiency, injury prevention, and comfort on the bike. A proper bike fit will not only provide a rider with the most economic means of expending energy, but will also prevent pain that is common in the knee, hip, and lower back, particularly with riders who are trying to adapt their bodies to the bike they already have purchased.

The Retül system reads the rider's movements while they are in motion on the bike, and accounts for all three planes of movement (3D). This type of data cannot accurately be captured with 2D video, static fitting, or eyeball fitting. The Retül system eliminates the guesswork and assumptive nature of bike fit. The result is that the rider will have a true fit to his or her bike, maximizing efficiency and performance while avoiding discomfort or injury.

Elite athletes and recreational cyclists alike will benefit from a proper bike fit. Accurate and objective fit data assists retail bike shops, fit studios, PT's, coaches, and performance centers in providing high-quality fit services. Retül promotes and encourages accurate and data-driven decisions for bike fit while considering the goals, individual biomechanics, strengths, and limitations of each rider. The bike fitter is the key - Retül technology alone is not enough to perform the fit. The training and experience of the fitter is essential to a good bike fitting experience. We simply provide the fitter with the most accurate fitting tool available so that he or she can increase the chances of achieving the desired position for each athlete. 

To schedule a Retul fit email us or call Bif at our West Des Moines shop at 515-222-1880.


126 S 3rd St.

M-F  10AM - 7PM
SAT  10AM - 5PM
SUN Noon-4PM


6600 Douglas Ave.

M-F  10AM - 7PM
SAT  9AM - 4:30PM
SUN  Noon-4PM

West Des Moines

5950 Village View Dr.

M-F  10AM - 7PM
SAT  9AM - 4:30PM
SUN  Noon - 4PM