For use with 22 mm CB track, the #382 Radial Traveler Car has special curved races to better fit tracks with extreme horizontal bends, such as radial vangs on boats like the Star. It is designed for use on tracks with a bend radius from 24" - 40" (600 mm - 800 mm). When used on track with a tight bend radius, this car is not used with track end control blocks To use this car to rig a radial vang, use the #384 vang block with high-load composite bearings which handles wire and high-strength line. The vang block sits recessed into the car to prevent block-to-block vanging