Description
CONDITION: This used 9.0" GL Flex Singlefin by Fibre Glas Fin Co. is in almost perfect condition!The leading and trailing edges are both super clean with no chips or cracks. There are some very light scratches around the fin, but overall this fin is really clean. Compared to a new GL FLex this fin is a steal. Ready to install and shred!
From Liddle Surfboards:
I cannot emphasize the importance of a flexible fin on these surfboard designs. The flex allows the board to behave appropriately; to trim at high speed with little effort; to maneuver smoothly and to release the board onto its rail smoothly during down the line turns. A rigid fin with the inappropriate foil will not have the speed or smooth transition. A rigid fin will pivot awkwardly cause the board to stall out and or spin out of a turn with no forward acceleration.
It is essential that the center fin have this particular type of flex, not a soft bending over flex, but a high tension flex that bends concave and gradually into the base of the fin. It lets power on and off even and smoothly resulting in a high speed and flowing style of surfing.
On the single with side fin configuration ( single flex fin and two side fins running roughly in line and parallel ) the flexibility of the side fins is not as critical as the center fin. I have noticed that if the side fins do have some flex and are foiled more closely like the center fins that the board seems faster and smoother but this may be a very subtle observation. I try to foil them similar as a result.
The fins of my design are made by Larry Allison at Fibre Glas Fin Company. The solid Volan fabric Fibre Glas Fin Company fins are foiled so that they provide the "concave" flex as shown.