SBS Fiberglass Longboard Single Fin - Butterfly Model (Greenough 4-A Template)

My original fin on a Degree33 Ultimate 9ft long board snapped and i bought this as a replacement with the same size. Even though it seemed to have less width I feel a huge difference in stability and turning. Love the fin and that it has the no tool screw too. Now wondering how the 9inch fin would do....

Fell in love with the 8 inch in my mid length so I bought a 9 inch for my longboard. The fin allows you to really pump the face of the wave and generate speed to make some weaker sections. Putting the fin far forward in the box it will whip the nose of my 9’oh scary quick. When you find that sweet spot, the fin will do some hard turns while feeling very smooth and stable through it. Fitment was terrific in the fin box for both the 8 and 9 inch fins unlike some other fins I’ve purchased. No side to side wobble and easy install. At the price, it is a steal for all the performance it brings!

Great quality and awesome color.

It's unclear if it's intentional but out of the box the fin didn't fit a standard longboard box. Some sanding would be needed to fit. Otherwise, would have been 5 stars.

Fin is perfect for my 8'6" longboard. Makes fun, carvy turns. Great value for the quality!

The SBS Fiberglass Longboard Single Fin - Butterfly Model is an absolute beast. It fills my fin box from end to end, providing excellent tracking compared to my stock fin, which is exactly what I was hoping for.Probably obvious, but this would not work for shallow water or lots of plant life (although it may cut some weeds that other fins would catch) - there are lots of SUP rides I wouldn't choose this particular fin for, but I love it in deep water.The material is quite sharp, so if you’re looking for something softer, this might not be the fin for you. However, it does come with a very nice padded sleeve that you can use when mounting and to protect the fin when not in use.The fin screw can be a bit tricky to deal with since there’s no slack in the fin box, but I didn’t have any real issues finding the nut. Overall, I’m really pleased with this fin's performance and quality.

Nice quality fin - read a review of someone comparing it to an original Greenough . If you know anyone who will hand make you a fin or know Greenough made products that well you do not buy fins on Amazon .Great value - good quality .I surf 3-4 times a week this is a good product at an incredible value .

Cons:Fin needed to be sanded downPro:*Cool color*Decent template very close to the to the Greenough*well constructed fiber glassNeutral:But on the stiff side as compared to the Greenough A2 but that’s subjective to your surf needsFinal comment: wouldn’t buy again because I had to buy/do extra to get it to fit into a box. Too much of a gamble to buy and maybe use right out the box