The Centering ring OTK is designed to fit between the hub and the rim (or on the axis depending on the mount). Its role is crucial: it ensures that the rim is perfectly centered on the axis of rotation. Without this ring, even a strong tightening of the wheel nuts can leave a micro-offset, resulting in parasitic vibrations and irregular tire wear.
1 OTK rim for junior cadets
1 rim minime cadet OTK