Formula Four Lock Ins Full 54mm 99a Durometer:99a Tri-fin set-up
Yard notes & kiln story
Description
Tri-fin set-up
It’s an upright fin with a 4 ¾ front and 4 1/8 back and works well with everything performance quads to hybrid designs like Josh’s Fish Simmons Quad
Our premium mid-length surf trunk at 18
8 Foil Flat
2 connection options: thru-doors or via loadbars (roof rails)
Formula Four Lock Ins Full 54mm 99a Durometer:99a Tri-fin set-upLock Ins Cut Asymmetrically cut, you can get the benefits of conical outer walls while the inside wall is cut straight, giving you a flat surface to lock in your grinds.