Captain Fin Jewel Tuder Longboard Single Fin Pivot 10.125 New, Unused Price not negotiable The pivot fin, with its vertically extended surface area, possesses all the necessary elements for nose riding. Two key points for successful nose riding are setting up in a nose-riding position and the board's hold after setup. The pivot fin's nearly vertical shape allows for a smaller turning radius and quick direction changes (pivot turns), making it easier to set up in the optimal position for nose riding. This fin is perfect for classic boards like nose riders.