Surfboard Fins
The different types of surfboard fin configurations:
Generally heavier surfers require larger fins to hold the waves better. Although if you
prefer to ride a looser (less hold in the waves), smaller fins would be a better
option.
Fin Configurations
Fin configurations have an effect on the ways your surfboards perform.
The following are some of the more common fin configurations.
Single Fin
The single fin was the original fin configuration for surfboards. Based on the idea of
the sailboat keel. Single fins are added stabilization and control on the powerful,
larger waves, although lack maneuverability.
Twin Fin
Are great for small waves, being fast and maneuverable, but when put into
tight spots on larger waves, they become hard to control. Popular with Fish
surfboards.
Thruster / Tri-Fin
Widely recognized as the standard fin configuration, the thruster answers the
shortcomings of the single fin and the twin fins configurations. The thrusters
give you stabilization, control and maneuverability in all types of surfing
conditions. This concept was the brainchild of Australia's Simon Anderson.
Quads
With four fins in the water, Quads boasts an extraordinary amount
of holding power in larger surf. You may think that having four fins
would sacrifice speed by creating more drag, but this is not
the case. The both sets of fins are working together on the rail,
which makers believe they creates less drag than a board with a center fin.
The maneuverability isn't sacrificed either, with fins directly under
your back foot, the quads are very responsive.
Keel
Similar setup to the Twin Fin, although smaller (low profile) fins are generally
placed wider (closer to the rails) on the surfboard.
Popular with Fish and Egg / Retro surfboards.
2+1
Popular with Longboards, the fin set up utilizing a single center fin
is complimented with two small fins.
Twin with trailer:
Basically a Twin fin configuration with an added small center trailer fin, this adds
more stability than the standard Twin fin configuration.
Twinzer:
Generally has two larger fins at the back (middle) and two toed (set on an angle) smaller fin placed outside and further
from the tail of the board. Like the Quads, Twinzer is much looser than a thruster yet
maintains speed. Popular with Hybrid surfboards.
Bonzer / C5:
The 5-fin configuration is similar to the Twinzer but with the addition of a
center trailing fin in the back. The two front fins are typically small and
oval shaped, designed to direct the water through the larger side fins, thus allowing
more drive from your board. Like the Twinzer, Bonzers are popular with the Hybrid boards.