Opt for Single or Double Concaves for Your Surfboard Bottom to Get Varied Experiences

Being well aware of various bottom contours and in what way they influence the act of surfing will save you both time and money when choosing a new surfboard.

Make sure you are going to use the stuff with a double or single surface of the bottom that is fitting according to your personal experience, the waves you strive to ride and the desired level of your surfing evolution.

The two types to take a closer look at are a single well-shaped concave and a double concave beginning with one hollow.

Single Concave


The design of a surfboard bottom with a single dished face looks like this.

The first 30-50 centimeters of the entry can vary from flat to slight roll or slight veep. Then there goes the single cambered surface that increases in depth to reach its maximum just before the outside fins.

Then in between the center fin and the rear end, its depth gradually decreases unlike in the surfboards with a double dished face.

The single dished surface carries water from the front until it goes by the fins and out the rear end of the board.

The configuration enables faster surfing and works wonders when surfing large smooth waves.

It is not exactly as multifunctional as a double one since it does not work for rough surfing styles, but its pace makes up for it and keeps this type a trendy purchase, though, double cambered bottoms are gaining their popularity.

The single well-shaped concave ensures more powerful turns, but it can at times linger at the wave face and as a result, become less flexible than a double bottom face. Because of that, surfboard shapers will eventually provide their boards with double concave.

Single to Double Concave


Such surfboards feature a single spun surface that starts at the beak and turns into the double cambered face on the way to the rear end.

At the front, the single-shaped concave ensures a good plain surface stable enough to drive, while the double concave in the back lifts the surfboard. It divides the water flow into separate streams that pass by the fins and then through the tail.

This type of concave is chosen for the majority of shortboards nowadays.

It enhances the pros of each type and at the same time, it softens their cons. Such a concave lessens the tracking of the single dished surface, yet makes quick rides possible and gives an easy feeling to the board.



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