A classic dolphin fin shape with a medium base and tip, providing a great all-round fin to suit all conditions. This fin will be great on a longboard with trailers (2+1 fin setup) or as a single fin for a more traditional style of surfing.
General Fin Characteristics:
- Depth – The maximum height of a fin as measured from the bottom surface of the board. This shows how far the fin goes in the water. The hold of the surfboard increases with more depth but generally makes it harder to turn as well. 3-4 inch depth is standard on tri-fins and longboard single fins typically have a depth of nine inches.
- Template – The fin outline.
- Base – The length of the fin where it joins the surfboard. Increasing length adds forward drive, but makes it harder to turn. Shortboard tri-fins usually have a 3.5-4.5 inch base, longboard single fins are about 6 inches.
- Foil – The horizontal curve of the fin, measured from the front edge to trailing edge.
- Rake – The distance between the trailing edge of the fin base and the fin tip. This is the swept back characteristic of the fin. Increasing rake increases traction.
- Tip – The top third of the fin. More tip means more hold.
- Flex – Stiff fins are faster but flexible fins are easier to turn.