The Kaptein Retül Bike Fit Deluxe is the most comprehensive bike fitting service available at Kaptein, using the industry-leading Retül 3D motion capture system to analyse your position in real time and make precise, data-driven adjustments. This premium package includes saddle pressure mapping, which identifies exactly where you're bearing weight on the saddle — enabling the fitter to optimise saddle height, tilt, and fore/aft position with scientific precision. Suitable for road, gravel, mountain, triathlon, and time trial bikes. At €320, this is the most impactful single investment a cyclist can make for performance, comfort, and injury prevention.