Flysurfer Boost 4 Kitesurf Kite

Product Code: 20815
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Now available the Flysurfer Boost 4 Kitesurf Kite at S2AS!

The Flysurfer Boost is the first choice for simply having fun! Improve your riding, increase your jump height and count on the precise feedback at the bar. Uncomplicated, super simple and robust. Put the powerful freeride kite on the hook, it will always strengthen your confidence and you can grow beyond yourself!

The Boost converts each of your movements into thrust! Unleash your potential and playfully increase your level. Experience unforgetting sessions with your crew, top your personal jump record or cruise relaxed into the sunset. A true freerider with power on demand and feedback you can always rely on.

The fourth generation of the Flysurfer Boost has improved stability and is easier to control. Perfect for riders who like powerful bar feedback, calm flight characteristics and a steady pull. The bridle system with pulleys further supports the already very simple relaunch. We decreased weight enhancing the light wind ability as well as the control at the edge of the wind window. The turning is tweaked to reduce pivoting and making steering more precise.

The Flysurfer Boost4 is a detailed overhaul of the Boost lineup that stays true to its predecessor’s character: accessibility.

Package Includes:

  • BOOST4 Kite only
  • UNIVERSAL Kite Bag
  • Compression Strap
  • Repair Kit
  • Kite Safety Guide


High Load Force Frame: The sturdy frame is made of tightly woven, high-strength fiber from DuPont, fixed with resin, and tempered. Minimal stretching, high tear resistance, low moisture absorption, and particularly good UV resistance reduce the deformation of the kite under the highest stress.

Pulley Assisted Bridle System: The bridle system, supported by pulleys, gives you balanced control bar feedback. The kite generates power homogeneously and creates a smooth flight pattern.

Spliced Bridles: The spliced bridle system performs at the highest level and offers maximum security without tangles or snags while also minimizing drag.

Bridle Anchor Points: The movable bridle anchor points avoid tension peaks by distributing forces optimally to the leading edge. The bridle system can be easily removed and replaced.

Reinforced Trailing Edge: The wavy Dacron reinforcement stripes on the trailing edge merge smoothly into a double layer of sail. The construction increases the durability of the product significantly.

GKA Rescue Label: As a partner of the Global Kiteboarding Association, our products feature a print for filling out your personal details in the middle of the kite’s leading edge. This supports the coast guard, rescue workers, and helps authorities in the event of loss or theft of the sports equipment.


Rider weight50 - 60 kg60 - 70 kg70 - 80 kg80 - 95 kg95+ kg
Control Bar sizeS / MS / MMM / LM / L
Board Size128 - 136 cm128 - 138 cm133 - 140 cm137 - 159 cm140 - 159 cm
Stancetighttight, neutralneutralneutral, widewide
L.E.I Kite sizes6 / 9 / 137 / 9 / 139 / 11 / 159 / 13 / 189 / 13 / 18
Line length20 m20 m23 m23 m23 m


Orders received by 2PM Monday-Friday are normally despatched the same day. (Large items may take longer)

Next day delivery in the UK is charged at £9.95.

Standard delivery in the UK takes 3 - 5 working days and is free with orders over £80. For further information please view our Delivery & Returns Policy.