The Bonzer is the archetype of the modern surfboard. It was the first standardized tri-fin surfboard (Dec. 1970). Unbeknownst to us at the time, others were working on a three fin design of there own. There was a big difference however between the two fin setups: while theirs had half moon shaped side fins placed behind the center fin, ours had keel shaped side fins that were placed forward of the center fin.  With over four decades of success for the Bonzer, as well as over three for the Thruster, we have demonstrated the archetypal nature of our original design concept.

There are two main characteristics that establish the Bonzer as an archetype.

Our establishment of the triangular arrangement of the three fins, with side fins placed forward of the center fin. The side fins were placed 10 1/2” to 12” from the tail and 1 1/2” to 1 3/8” from the rail. They were also towed in toward the nose at what has become the standard angle

Our design and development of the single to double concave (double through the fin area) bottom. This bottom contour was designed to work in conjunction with the fins to organize the water flow through the tail area.