Surfing Equipment & Gear - Surfboard Fins
Surfboard Fins, also known as skegs, act as keels under a Surfboard. These help in steering your board and preventing it from sliding sideways. They also make the board go straight and enable you to turn effectively.
Before, Surfing Boards don’t have fins. Fin setups then include single fin, twin fin, and tri fin or thruster. Nowadays, Surfboard Fins come in different shapes, sizes and colors. Generally, there are two types of fins: Glass on Fins and Removable Fin Systems.
- Glass on Fins
Glass on Fins are laminated to the board itself with fiberglass and are non-removable. Since they are attached to the board, they provide greater strength and better performance. However, they are a bit expensive and are difficult to repair. Non-removable fins can also be a hassle during travel.
- Removable Fin Systems
Removable Fin Systems were developed in the early 90’s but when they first started out, they weren’t interchangeable. Nowadays, this type of fins provides surfers with the ability to enhance their riding skills by changing the size and shape of the fins. One advantage of removable fins is that you can take them out whenever you like. The downside with removable fins is that there is no standard fin system. You have to find the right fins that are suitable for your board.
Fin Measurements
When measuring the fins, it is important to take note of the base length, depth, fin plug, and rake.
Base Length
This is measured at the widest point of the fin which determines the speed and drive: Longer Base Length = more speed, greater drive.
Depth
Depth determines how far the fins go into the water.
Fin Plug
The Fin Plug applies to the removable fins only. This is placed on the Fin Box located at the base of the Surfboard.
Rake
Rake or sweep refers to the amount of the fin outline that is curved backwards. It affects the turning ability of the board.
Fin Flex
Another thing that you must know about Surfboard Fins is the Fin Flex. This is the amount of movement a fin can do from side to side. If you have stiffer fins, there will be less movement from side to side and less flex.
There are particular fins that you can use depending on your skill level. Once you are already comfortable with Surfing, you can then choose from the different types of fins that will suit your taste and need.
Surfboard Fins affect the way you control your board and ride the waves. Make sure to use the type of fins which is suitable for your Surfing ability.
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