Skip to product information
1 of 2

Surfboard Fins Quad Set (4 Fin FCS compatible M5+G-X spec)

Surfboard Fins Quad Set (4 Fin FCS compatible M5+G-X spec)

Circle One Surf

In stock

Regular price £22.99 GBP
Regular price Sale price £22.99 GBP
Sale Sold out

FCS compatible Quad fin set. Based on the M5 and G-X quad template and will fit FCS II and FCS Fusion finbox systems. Moulded composite fin with engineered flex and tip response. The robust upright templates make this set fast, responsive, and stable at high speeds.


Technical Specifications

FRONT

-BASE 4.37inch/111mm
-DEPTH 4.55inch/115mm
-AREA 14.76inch/9525mm
-SWEEP 33

REAR

-BASE 3.88inch/98mm
-DEPTH 3.80inch/96mm
-AREA 11.22inch/7238mm
-SWEEP 30.7

View full details
Your UK Surfing Resource

Learn. Explore. Find Your Surf.

Everything you need to start surfing in the UK — from learning the basics and choosing your first board to finding the right surf school and getting into the water.

Bob Gnarly Learn To Surf UK Academy LEARN

Learn To Surf UK Academy

Step-by-step online surf lessons designed to take you from complete beginner to confident surfer — with practical, UK-focused knowledge along the way.

  • Beginner surf lessons
  • Surfing techniques & progression
  • Ocean & wave knowledge
  • Learn at your own pace
Start Learning →
Bob Gnarly Beginners Surf Hub UK EXPLORE

Beginners Surf Hub UK

Your growing library of beginner surf guides, equipment advice and practical knowledge to help you make better decisions before you hit the water.

  • Beginner surfboard guides
  • Equipment & buying advice
  • Surf tips & how-to guides
  • Everything beginners need to know
Explore The Hub →
Bob Gnarly UK Surf School Directory FIND

UK Surf School Directory

Find surf schools, instructors and places to learn across the UK. Discover local coaching and find the right place to begin your surfing journey.

  • Surf schools around the UK
  • Search by region
  • Beginner-friendly coaching
  • Lessons, courses & local knowledge
Find A Surf School →
Built by surfers, for surfers — helping more people discover surfing in the UK. 🌊