Details Captain Fin – Christenson Tracker – 10 Captain Fin Christenson Tracker 10″from our Shapers Series. Template:DriveRaked fin for classic longboarding. Ideal Board:Longboards. Construction:Fiberglass construction. Chris Christensondesigned the Tracker series for bigger boards the way he likessimplified and basic. There’s a slightly wider base for drive and just enough rake that combines with a thinner tip for a tighter radius on turns and less drag. The 10″ is for noseriders where you need a little depth and drag for noseriding. Fin Specification Size Area 42.7″ Height 10″ Base 7″ Foil 50/50