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Do these fins have the " Inside Foil Technology " ?
FCS M5 Tri Surfboard Fins - Performer Glass Flex Fins do come with the Inside Foil Technology.
Do you have any fiberglass fins (tri fin set) for the old FCS 1?
We currently do not sell any Tri- fin fiberglass fin sets for an FCS 2 tab system.
Do these fins work for a FCS 1 system?
The FCS M5 tri fins work with the FCS fusion systen and the X-2 system. They are the 2 tab fin system.
Does this come with 3 fins?
Yes a tri fin set is 3 fins, also known as a thruster.