Paired with two or four runners, the True Ames Bonzer Fin is one of the best ways to efficiently organize water flow. This fin works in a synergetic fashion to maximize the use of the energy that is created by the water passing through the tail area of the board. When you're doing a turn, the water travels diagonally across the bottom of your board. This makes the rail-to-rail transition much easier, which in turn allows you to keep your board on the rail with much less effort.

This fin was designed by the Campbell Brothers with the intention and specific purpose of being paired with their Bonzer Surfboards. This center fin is meant to complement the unique bottom contours and fin setups of their 3 and 5 fin designs.

The Bonzer fin works synergistically with the additional runners to efficiently and effectively organize water flow across the bottom of the surfboard, resulting in a highly optimal transfer of energy. If you have a Bonzer board, this fin is the official prescription prescribed by the Brothers Campbell to fix it up for maximum performance.