The R4D is designed for YOUR type of expression. Use it for freeride foiling, ride it as a freestyle sail, carve moves on your foil, and go as R4Dical as you dare.
Designed with Balz ‘Radiculo’ Müller, this sail adapts to every rider’s ambition. Balz pushes it through signature aerial stunts while the R4D remains accessible for everyday sessions, transcending traditional boundaries. The new FoilWave dimension opens unexplored territory – draw lines in waves regardless of conditions.
Four battens – that’s what the “4” in R4D delivers. This configuration maintains precise balance between maneuverability and stability throughout the entire size range. Smaller sizes enhance quick turns, mid-range delivers versatile performance, and larger sizes provide freeride power without adding weight.
A sturdy, but lightweight construction makes the R4D among the lightest in class. Premium materials and strategic panel layout strip away excess weight without sacrificing durability. Less weight means more response and longer sessions.
Rediscover that true feeling of freedom that started it all. The R4D’s versatility, promoted by an Xtended Range, strips away complexity; maximum range, minimal equipment. Break barriers, R4Dical freedom awaits.
/ All new concept
/ Xtented Range
/ Possibly the lightest all-round no cam foil sail.
SIZES: 4.0 / 4.4 / 4.8 / 5.2 / 5.8 / 6.4
Hand drawn logos
The R4D is also a work of art. Enjoy hand drawn logos on the sleeve, leech, and foot of the sail.
MOLDED SOFT EDGE
With recessed grooving, covering any vulnerable stitching the moulded soft edge encloses the hard edge long the foot of the sail and protects the stitching from wear along the board non-skid.
CAMO THERMOFORMED TACK FAIRING
Protects your board from impact and neatly covers the foot detailing. It incorporates the rope stash pocket for easy storage of your downhaul rope.
GRADIENT PANEL TECHNOLOGY
With the new GRADIENT PANEL TECHNOLOGY improvements are obvious. Lighter weight and better stability.
Using the new GRADIENT PANEL TECHNOLOGY. Corners have overlapped panels which reduces the amount of patching. At the same time these overlapped areas extend into the body of the sail so it transitions the load much better, will be less stretch over time. It’s a more stable way of building sails.
The GRADIENT PANEL TECHNOLOGY logically reduces weight, increases strength and controls stretch. Overall weight is reduced but the more significant improvement is the feel – quicker reacting and lighter feel.
Rather than a single curved luff panel, we use separate panels – split luff – that radiate out of the head and tack corners. This perfectly aligns the sail material with the direction of load.
Previously the curved panel would have bias stretch in all the wrong places. Direct transmission of power. Increased longevity.
RECOMMENDED
/ BOARD
PREDATOR
ALIEN
/ MAST
R4D is recommended for RDM masts.
RDM RED – For ultimate performance.
RDM BLUE – High end performance with increased reliability.
GORILLA – For durability with an unconditional 2 year limited warranty.
/ BOOM
ENIGMA – For ultimate performance.
METAL – For high end performance.
/ EXTENSION
CYCLOPS
