

Channel Islands Tri - Futures Compatible (Solid Fiberglass) (ci fleet / Medium)
The True Ames Channel Islands Tri Fins are a performance-driven thruster set built for speed, control, and smooth turning. Hand-finished by True Ames and desig…
Adds to your Lundquist cart. Mix with boards and accessories — single Stripe checkout. Ships in 3–5 business days after a Lundquist QC pass.
Specs
- Fin box
- futures
- Foil
- —
- Rake
- —
- Base
- —
- Depth
- —
- Area
- —
- Weight
- 340 g
- Material
- fiberglass
- Construction
- Solid Fiberglass
About this fin
The True Ames Channel Islands Tri Fins are a performance-driven thruster set built for speed, control, and smooth turning. Hand-finished by True Ames and designed in conjunction with CI team, these fins feature balanced flex and a clean foil that deliver dependable drive and effortless release. Versatile and responsive, they suit a wide range of boards and conditions. These templates are some of our longest standing fins in the lineup for good reason!
New to thruster setups?
Learn how foil, rake, and family choice shape the way a board rides.
More thruster options

F8 Alpha (Default Title)
futures
The F8 Alpha is a large sized thruster in the Neutral template category. Made in Huntington Beach, the Alpha product line combines Bureo’s NetPlus recycled fis…

P6 Legacy Series (Default Title)
futures
The P6 Legacy Series is a medium sized thruster in the Pivot template category. The reduced rake allows for tighter turns in the pocket, and the Honeycomb cons…

FCS II Accelerator White Edition Tri Fin Set (LRG / Performance Core / White)
The FCS II Essential Series White Edition brings timeless style to proven performance Performance Material Size Overview Accelerator // Reef Break Designed for…
Pair this fin with a Lundquist board
Every Lundquist board is built to your spec. Tell Blake what you’re after and he’ll dial in the fin recommendation with the shape.
Start a Custom Order