Details Template:DriveRaked fin for classic speedy longboarding when paired with a 2 1. Ideal Board:Mid-Lengths and longboards with2 1 fin setups. Construction:Fiberglass construction. Chris Christenson designed the Tracker series for bigger boards the way he likessimplified and basic. Theres 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 8.5 Tracker is for flatter rocker boards and extra long (11) gliders. Fin Specification Size Area 30.85″ Height 8.5″ Base 6″ Foil 50/50