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SURF
EA techflex f4 blackstix 3.0
am2 techflex
The AM2 Techflex is the largest thruster design by Al Merrick of Channel Islands Surfboards and its responsive flex pattern make it ideal for high-performance power-surfing in good waves. This fin offers a wider base for drive off of the bottom, more rake to hold powerful carves and a finer tip for release off of the top.
dimensions
size:
Large (180lb+) (80kg+)
side fins:
height: 4.73"
base: 4.64"
area: 15.98"
center Fin:
Height: 4.49"
base: 4.63"
area: 15.32"
am2 techflex
construction
techflex
Techflex is stiff like Fiberglass but lighter than Honeycomb. The ultimate in flat foiled fins, great for powerful surfers or powerful surf.
RIDE NUMBER
3.0/10

Ride Number is all about how your equipment feels while you're surfing. Now you can choose a Speed Generating Feel that is springy and responsive by picking a fin in the 10-7 range, or a solid, engaged, and predictable feel from the Speed Control category rated 4-1. For a Balanced feel try a Ride Number of 7-4.

Learn more: RIDE NUMBER

foil
FLAT Foil
Flat foiled fins break free sooner, and are better at controlling speed. Often surfers prefer them in fast powerful surf where they do not need to create additional speed. If you have muscle memory from riding glass-ons, flat foiled fins will feel the closest.