Spark Plug – A Refined Modern Performance Twin Fin
The Spark Plug represents a polished evolution of the modern performance twin fin, combining speed, control, and responsiveness. It features moderate nose lift paired with a lower tail rocker and subtle vee off the tail, promoting smooth, fast rides with added release.
Bottom contours include a slight concave through the center transitioning into a gentle double concave in the fin area, optimizing lift and drive. The fins are positioned slightly further back to enhance speed, hold, and control, while the tapered rails through the fin zone allow the board to “knife” into the wave face with precision.
The outline offers a fuller nose for improved paddling and planing, while the midsection straightens out to maximize speed and maintain strong rail hold.
Pros:
Moderate nose lift and low tail rocker balance paddling ease with control
Double concave under fins improves lift and drive
Set-back fins enhance speed and hold
Tapered rails allow sharp, precise rail engagement
Cons:
Twin fin setup may feel less stable at high speeds for some riders
Moderate rocker may limit performance in very steep or hollow waves
Summary:
The Spark Plug is a thoughtfully refined twin fin designed for surfers seeking a smooth, fast, and controlled ride. Its blend of rocker, contour, and fin placement delivers strong paddling, crisp rail engagement, and confident speed—ideal for a variety of wave types and conditions.