Matt ‘Mayhem’ Biolos’s ‘MB’ shaper fin. High area specialty quad set adds bite and control.

Upright keel template designed for traditional fish shapes.

Overview

• Matt ‘Mayhem’ Biolos’s specialty quad fin set.
• High area quad keel set adds bite and control to hybrid boards with wide tails, without sacrificing pivoting capabilities.

Board Types

• Designed to fit the FCS II Fin System.
• Recommended for all board types including modern fish and hybrid models with moderate-to-low rocker.