Bonzer5 Side Runners - Apex
The Bonzer5 runners were designed by Malcolm and Duncan Campbell to optimize the performance of their Bonzer surfboard designs.
These fins complement the Bonzer board concaves to help control water flow out the tail while maintaining speed, control, and hold.
Both front and rear fins have 19 degree cant.
See the Campbell Brothers website for more info: https://bonzer5.com/boards/bonzer-mechanics/