The FCS II Flow II PG 10.5" Longboard Fin in clear is a neutral single fin with an elongated base. It drives hard off the bottom and supports controlled, flowing turns.
Drive and Hold for a Relaxed Style
The long base gives the Flow II extra drive and hold for longer turns and trim stability. FCS designed it for a more laid-back style of longboarding, and the 10.5" size adds the most hold in the range.
Key Features
- Elongated base: Extra drive and hold through long turns and trim.
- Neutral template: Predictable feel for smooth, flowing lines.
- Performance Glass (PG): Machine cut from layers of solid fiberglass for a stiff fin that holds its flex pattern under heavy load.
- FCS II tool-less longboard system: No plate or screw needed. The fin clicks in and out in seconds without a fin key, and you can adjust its position in the box mid-session.
FCS II Flow II PG 10.5" Specs
- Size: 10.5"
- Base: 7.96 in
- Depth: 10.54 in
- Area: 47.53 sq in
- Sweep: 33.7 degrees
- Foil: 50/50
- Construction: Performance Glass (PG)
- System: FCS II Longboard
- Color: Clear
Board Fit and Compatibility
This is a single fin for traditional longboards and logs. FCS designed the FCS II longboard fins to fit most existing longboard boxes, so no new box is needed.
Rider Shack Note
Rider Shack is a small, independent core surf shop in Los Angeles run by surfers. If you are not sure which fin or size suits your board, call or stop by the shop and we will help you sort it out.
FAQ: FCS II Flow II PG 10.5"
Who is the Flow II for?
Surfers with a relaxed longboard style who want drive and hold for long turns and trim.
Why choose the 10.5" size?
The bigger depth and area give the most hold and stability, which suits longer, heavier longboards.
Do I need a screw and plate?
No. The FCS II tool-less system holds the fin without a plate or screw.
Will it fit my longboard box?
FCS designed it to fit most existing longboard boxes. Check with us if you are unsure about your board.
