2025 Flysurfer SONIC 4 Kitesurfing kite
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Flysurfer SONIC 4
The SONIC boasts accessible power, powerful lift and incredible hangtime. Fly a lightweight and highly efficient kite that cuts through the air with high speed and turning ability. Reactive and predictable in rough conditions to give advanced riders who want to push their limits the ultimate in control. Get ready for unprecedented acceleration, adrenaline-fuelled sessions and extreme boost capacity!
features
STREAMLINED LIGHTWEIGHT CONSTRUCTION
The combination of lightweight construction, durability and optimal force distribution across the entire span. The upper and lower sails are made of 34 g/m² TX-Light, the leading edge of 44 g/m² DLX+ cloth. The DLX+ increases the service life and protects against abrasion. The Little Connection Lines (LCL) serve as a predetermined breaking point and make it easier to replace the bridle lines. All components of the SONIC are designed for maximum performance in any terrain.
PERFORMANCE TUNER
The Performance Tuner is a knot ladder integrated into the C-Pulley Line to influence the camber of the kite. Moving the Z-Main Line influences the bar forces and performance of the kite. By shortening it you get more low end, steering/holding forces. Lengthening it has the opposite effect, you get less backstall, steering/holding forces. With the settings for brake emphasis, power and depower you can optimize - depending on wind conditions and personal preferences - to exploit the maximum potential of the kite.
Bridle Check Tool
Profile Momentum Adjuster
The SONIC is a trustworthy, user-friendly and predictable powerhouse that you'll want to ride in challenging weather. Specialized to meet the needs of the next generation of big air kiters and loyal foil kiters.
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WIDE WIND RANGE
The SONIC is designed to perform exceptionally well in varying wind conditions. Whether you're kiting in light breezes or strong gusts, it maintains its shape, responsiveness and efficiency. The enormous depower minimizes risks and ensures that you can confidently push the limits in a variety of conditions and on any terrain. The kite features a sophisticated bridle system and refined canopy profiles that ensure the kite flies consistently smoothly.
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ENHANCED ACCESSIBILITY
The kite has advanced aerodynamics that make it incredibly stable in a variety of wind conditions. This allows you to focus fully on your riding rather than constantly correcting the kite. The internal structure speeds up inflation so that the kite can be controlled as quickly as possible - especially in strong winds when launching. After a crash or a kite landing, it can be launched with minimal effort. In an emergency, the kite will blow out on a single front line after activating the quick release.
Scope of delivery:
SONIC Kite only
UNIVERSAL Kite bag
LIGHT Bag
Compression Strap
Trim Checker
Sandbag
Repair Kit
Kite Safety Guide
| SONIC | 6 | 8 | 10 | 12 | 15 | 18 |
|---|---|---|---|---|---|---|
| Color | LIT Orange, Dove | LIT Orange, Dove | Ceramic, Dove | Ceramic, Dove | Mellow Yellow, Dove | Mellow Yellow, Dove |
| Area (projected) | 4.99 | 6.65 | 8.32 | 10.4 | 12.47 | 15.38 |
| aspect ratio | 5.8 | 5.9 | 6.4 | 6.6 | 6.7 | 6.8 |
| Cells | 45 | 45 | 45 | 45 | 55 | 55 |
| Weight = canopy + complete bridle + mixer (kg) | 1.22 | 1.5 | 1.78 | 2.08 | 2.5 | 2.98 |
| bar size | 52 cm [M] | 52 cm [M] | 52 cm [M] | 60 cm [L] | 60 cm [L] | 60 cm [L] |
| Line length | 20 m | 20 m | 20 m | 20 m | 20 m | 20 m |
Delivery
We aim to dispatch all in-stock orders within 1 working day (Monday–Friday, excluding Bank Holidays).
Free UK Mainland Delivery on orders over £30
- Orders placed before 2pm are dispatched same day where possible
- Orders placed after 2pm are dispatched the next working day
- Orders placed after 2pm Friday or over the weekend ship on Monday
- Orders under £30 are charged £3.95
Oversized & Remote Areas
- Large items (e.g. surfboards, sit-on-top kayaks): £19.95
- Some UK postcodes (Highlands & Islands) incur a £15 surcharge
International Delivery
- EU delivery from £20 (3–7 working days)
- Rest of world from £35 (3–7 working days)
Local VAT, customs duties, or import charges may apply to international orders and are the responsibility of the customer.
Returns FAQs
Can I return an item if I change my mind?
Yes. You can return your order within 14 days of delivery. Items must be unused, in original condition, with all packaging and tags intact.
How do I start a return?
Email info@s2as.com with your order number and reason for return. We’ll reply with return instructions.
How long do I have to return an item?
Let us know if you would like to return your item within 14 days. Once you’ve notified us (within 14 days), you have a further 14 days to return the item, so 28 days in total.
Do I need to pay for return postage?
Yes. Return postage costs are the responsibility of the customer unless the item is faulty or incorrect.
Will I get a refund for the original delivery cost?
Original delivery costs are non-refundable for unwanted items. Faulty or incorrect items will receive a full refund including original delivery costs.
What if my item is faulty or damaged?
Please contact us as soon as possible with photos. If confirmed faulty, we’ll arrange a replacement or full refund.
When will I receive my refund?
Refunds are processed within 5 working days of us receiving and inspecting the return. Banks may take additional time to show the funds.
What if my return is lost in transit?
Returned items remain the customer’s responsibility until received by us. We recommend using a tracked service.
Can I exchange an item?
Yes. Let us know when you contact us and we’ll do our best to arrange an exchange.
Contact
Email: info@s2as.com
Phone: 01202 738 448
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Price Match
At Surface 2 Air Sports (S2AS), we believe you shouldn’t have to choose between the best price and the best service. If you find the same product cheaper elsewhere from an authorised UK retailer — we’ll match it.
How Our Price Match Works
- Find the identical product at a lower price (UK authorised retailer).
- Send us the details using the form below before checkout.
- We’ll verify it and confirm quickly.
Price Match Conditions
- Product must be identical (brand, model, size, colour, year).
- Competitor must be a UK-based authorised retailer.
- Item must be in stock and available for immediate purchase.
- Competitor price must include VAT and delivery.
- Request must be made before completing your order.
What We Don’t Match
- Marketplace sellers (Amazon, eBay, Facebook Marketplace).
- Private sellers or clearance errors.
- Members-only, bundle, or finance-only promotions.
- Used, refurbished, or ex-display items.
Found a Better Price?
Send us the details and we’ll take care of the rest.
Price Match Request Form
Price Match FAQs
How long does a price match take?
Most requests are reviewed within one business day, often faster during opening hours.
Do you price match after purchase?
No — all price match requests must be submitted before checkout.
Does the competitor have to be UK-based?
Yes, the retailer must be UK-based and an authorised brand stockist.
Does shipping count in the price?
Yes — we compare the total price including VAT and delivery.
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Price Match Contact Form
Found an item cheaper elsewhere? we want to know send it to us, So we can look at matching the price for you with the Service you expect from S2AS.
