FCS II Split Keel Performer Quad Fins Thunderbolt is designed to fit between

is designed to fit between a traditional upright and keel fin

Description: Donald Brink ha-shaped Bonzer 3 with glass on bonzer fins

Some light cosmetic scuffs and scratches on the bottom

is a large size thruster in the Rake template category

There are a few cosmetic cracks along the stringer in the gloss coat that are watertight

FCS II Split Keel Performer Quad Fins Thunderbolt is designed to fit betweenOverview The Performer Quad Keel is based on the theory of taking a full size keel template and turning it into a quad set by extracting area from the back of the fin and re shaping it into a mini quad rear. The side fins have been designed from scratch with the leading edge inspired by the popular Modern Keel, and a trailing edge similar to the Reactor template. The low profile quad rear is compact yet matches aesthetically the side fins, almost like