Skip to content

FCS

FCS II Channel Islands Solution Quad Rear Fins LG

SKU: 118764
Sale price $92.00

Shipping calculated at checkout

Only 1 in stock

Spend $75 to get free shipping

Shop with confidence

  • Surfer Owned & Operated
  • Expert Advice
  • Trusted reviews
  • Fast Shipping
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • Diners Club
  • Discover
  • EPS
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • Multibanco
  • MobilePay
  • PayPal
  • Przelewy24
  • Shop Pay
  • Twint
  • Union Pay
  • Visa

FCS II Channel Islands Solution Quad Rear Fin Set - Large

The FCS II Channel Islands Solution Quad Rear Fin Set in Large is a fast, controlled, and highly responsive rear fin set designed by Britt Merrick and developed in collaboration with Channel Islands Surfboards. Based on the popular CI Upright template, this rear set is built to pair seamlessly with the upright CI side fins and create a performance quad setup focused on speed, hold, and tight, pivot-driven turns.

Featuring a neutral-raked template and refined 80/20 foil, the Solution Quad Rears offer a balanced feel underfoot with the stability needed to hold clean lines through critical sections while still allowing for quick release and fast direction changes. This combination makes them an excellent choice for surfers who want a quad setup that feels lively and performance-minded without losing control. When paired with CI Solution side fins, they help enhance overall drive and hold while maintaining the loose, responsive release that makes a good quad setup so fun to ride.

Built in Performance Core construction, these fins are lightweight with a progressive flex pattern that supports speed, control, and versatility across a wide range of surf conditions. While they excel in punchy, hollow waves where responsiveness matters most, they also work beautifully in open-face waves and down-the-line point break surf where speed and directional control come alive.

Why You'll Love It

  • Designed by Britt Merrick in collaboration with Channel Islands Surfboards
  • Based on the proven CI Upright design
  • Neutral rake offers a strong balance of control and pivot
  • 80/20 foil improves stability and directional control
  • Built to pair with CI Solution side fins for a high-performance quad setup
  • Performance Core construction delivers lightweight feel and responsive flex
  • Excellent for speed, tight turns, and clean release
  • Ideal for punchy, hollow waves and high-performance surfing

Performance Feel

The Channel Islands Solution Quad Rears feel fast, controlled, and highly responsive. The upright-inspired template supports quick transitions and tight, pivot-style turns, while the 80/20 foil helps keep the board stable and predictable through critical maneuvers. When paired with CI Solution side fins, this rear set adds drive and hold without sacrificing release.

Ideal Conditions

  • Open-face waves
  • Down-the-line point breaks
  • Long, carving turns on clean walls
  • Punchy, hollow surf where speed and responsiveness matter

Features

  • Model: FCS II Channel Islands Solution Quad Rear Set
  • Size: Large
  • Template Family: Carver
  • Construction: Performance Core
  • Fin System: FCS II
  • Template Feel: Speed, control, and tight directional surfing
  • Foil: 80/20
  • Recommended For: CI Performance Boards, especially the CI Solution
  • Designed To Pair With: CI Solution Side Fins

When you shop at Rider Shack, you’re supporting a small business and core surf shop run by surfers who care about quality gear, real surf knowledge, and genuine customer service.

Back to top