FCS II H4 Hi Density Carbon Fibre Tri Surfboard Fin - Medium - Smoke
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Unlock the next level of performance with the FCS H4 Medium Smoke Tri Fins. These fins are a revolutionary blend of cutting-edge design and high-tech materials, meticulously crafted to deliver an unmatched surfing experience. Engineered for speed, control, and precision, the H4 Tri Fins redefine what’s possible on the wave.
The H4 fins feature a unique template that combines a dynamic, streamlined shape with advanced Performance Core (PC) material and carbon inserts. This innovative construction ensures a perfect balance of strength and flex, providing exceptional drive and smooth, responsive turns. The medium size caters to a broad range of surfers, offering versatile performance across various conditions. The sleek smoke color adds a modern, stylish edge to your setup.
Product Specifications:
- Fin Material: Performance Core (PC) with carbon insert for enhanced strength and flex
- Base Length: 4.57" / 116 mm
- Depth: 4.75" / 121 mm
- Area: 15.98 sq in / 10310 sq mm
- Sweep: 34.0°
- Foil: Inside Foil Technology (IFT)
- Ideal Conditions: Excels in a variety of conditions, from beach breaks to point breaks, performing exceptionally well in powerful, fast waves
- Board Types: Designed for high-performance shortboards and hybrid models
Delivery
Same-day Dispatch
Orders placed before 2 pm are usually dispatched the same day.
Orders after 2pm are typically dispatched the next working day.
Deliveries are made Monday to Friday, between 9am and 5pm.
Free Delivery
Free delivery is available for orders over £100, excluding surfboards.
International Shipping
Delivery to international destinations is estimated at 7–12 working days, depending on the country.
For orders shipped outside the EU, the customer (importer) may be responsible for customs duties or import tax.
If import duty is unpaid and the item is impounded by customs, Balsa Surf may not offer a refund.
If such an item is returned, any refund would be minus:
Postage costs -
Any extra costs incurred in returning the item to them.
Returns / Refunds Policy
14-day returns on all eligible items.
Items must be unused and in original packaging.
Return postage is the customer’s responsibility.
Refunds processed once we receive the item back.
FAQs
Not sure on size?
Check our size guide on the variant dropdown above, or pop into the Porthcawl shop to try it on. Happy to swap for free if it’s wrong.
Is it suitable for cold UK waters?
If it’s listed in a winter category, yes. For wetsuits specifically: 5/4mm for winter, 4/3mm spring/autumn, 3/2mm summer. Still unsure? Message us — we surf the same breaks you do.
Can I collect in-store instead of delivery?
Yes — select Local Pickup at checkout. Usually ready the same day if ordered before 2pm.
What if it arrives damaged or wrong?
Let us know within 48 hours and we’ll sort a replacement or refund. No quibbles.
Can you help me choose?
Absolutely — drop us a message or call the shop. Real surfers answering, not a chatbot.
Reviews
Absolutely amazing staff, fast shipping and a fantastic range of high quality products! Couldn’t recommend this enough!!!
Lexi Parobij-Tudor
Google Review
Cracking little shop with a vast selection of topmame products to offer- definitely worth a visit if you are in the area or on there website- 5⭐️
Craig Roberts
Google Review
Great shop run by passionate surfers - one of my go - to shops for anything surf-related, very reliable and fast web-ordering service!
Alexander Schmidt
Google Review
Why shop with Balsa Surf
Porthcawl's surf shop
Browse online, or visit us at 12 Well Street.
Advice from the water
Our team surfs the same breaks you do.
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