Two Plus One and Single Fins Explained

In the world of longboard and midlength surfing, two fin types dominate: the single fin and the 2 plus 1. In spite of some similarities between the fin types in terms of control and length of board, the types of surfing done on these two fin set ups is very different. In this blog, we will take a look at the reason for the difference by giving an overview each fin type. 

What are the differences and how does this change ride feel? 

For a single fin surfboard, a large center fin is placed close to the tail of the surfboard. The size of the fin is usually the same number of inches as the board is in ft. For example, a 9ft board calls for a 9 inch fin, 10 ft for 10 inch fin, etc. For in between sizes, the fin can either size up or size down based upon the level of hold and control you desire in your surfboard. As for a two plus one fin set up, the center fin is about an inch shorter than your single fin with the addition of two small front fins which are called "side bites." Hence the name, the side bites are meant to grip the wave better when putting the board on rail. 

Both fin types work very well on longer boards that require a good amount of stability to control the board. The difference lies in how the rider would surf on these types of fin set ups. The single fin creates a pivot point when turning, which means the types of turns on a single will be less of a carve and more of a quick pivot before moving in one direction. This allows the board to become a great noserider as the main goal is to pivot, get to the nose, then trust the big fin to maintain hold in the wave face. 

The two plus one is still a great fin set up for noseriding, but the side bites offer added performance. As you put the board on rail, the side fins will engage and create drive down the line. Also, with a smaller center fin, there is a bit less drag so the board can move faster down the line. For these reasons, a two plus one is unparalleled for performance longboard and midlength surfing. As opposed to a pivot turn on a single fin, you can find your self carving, accelerating down the line, and going for a plethora of high performance maneuvers. 

What type of board is suitable for each? 

Different ride feels mean there are different board types suited for the fin. For a single fin longboard, you will usually have a board that is "classic" in style, featuring a lower amount of rocker, a softer rail, and a generous amount of thickness & width. Check out our Classic Noserider if you are interested in this type of board. These are well suited for intermediate to advanced surfers who enjoy a slower approach to their surfing. Beginners might find these boards to be stable, but difficult to manage and easy to nosedive. 

A board fit for a two plus one has more performance characteristics, such as a higher amount of rocker, more concave, a hard rail at the tail and beveled rails throughout for quicker turning. These features accentuate the best features of the 2 plus 1 for optimal turning. Everyone from pro surfers to newer surfers can have lots of fun on a board with a two plus one. A pro could take the board to its limits, and a new surf will find the board easy to learn on because they are easy to paddle and turn with less chance of nosediving. If this fits your style, be sure to check out our Ultimate longboard.

 How do I know which is the best for me? 

When it comes to choosing the best board with the best fin type, ask yourself: what kind of surfer you are, and what kind of surfer do you want to be? If you are someone who enjoys speed, quick turning, and the ability to surf in a variety of waves. The two plus one fin set up, paired with out Ultimate longboard is a perfect fit. But if you find that you want to experience a new realm of surfing, with a an emphasis on gliding with the wave; slowing everything down to take in every moment, go for a single fin like the classic noserider. 

Conclusion 

The shape of the fin shapes the kind of surfer that you are going to be. So be sure to get a good grasp of your surfing before purchasing your next fin set or surfboard. 

We hope this blog has been a helpful tool that you can use as you continue to craft your unique and personal surf style. If you have more questions about fins, be sure to give us a call at (800)-920-2363 or email us at surf@degree33.com.