Fins provide the rider with control as they shift weight, steer the board, and turn, and the more fins you have, the more stable your ride is going to be, that’s true for all surfboards, including jetboards, but on a normal surfboard, the position of the fins is totally different from what you’d find on a jetboard.
When you’re riding a surfboard, you’re on a downward slope and the momentum of going down the wave is the force that’s driving you forward. On a jetboard, the force of the jetpack at the back of the board is what’s driving you, so the pivot point is different.
Since the pivot point is different, you cannot put fins under the anterior like you would with a surfboard. Instead, if you are using a pair of fins, they need to be placed at the back of the jetboard where the pivot point is.
Our Freeride and Carve boards both have a twin setup with two fin boxes at the back of the board, whereas X-sport has a quad setup with four fin boxes, two at the front and two at the back to offer more configuration flexibility.
Note! The fins delivered with your jetboard might be of a different model than those shown in the pictures on our website as those pictures are for illustration purposes only. Each jetboard will come with fins perfectly fitted for that particular model.
Want to read the full article? Check out our blog post “Fin fundamentals” here: https://www.radinn.com/SE/Blog/2021/12/X-Sport-Fin-Configuration