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KATANA

narrow BOX tail ® Patented design by Takuji Araki

Manufacturer name: STB SUP KATANA

From ₩8,050,000

Prices are Starboard's recommended retail prices in Korean won (rounded down to the nearest ₩10,000). Please contact us for the actual price and stock.

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SPEED THROUGH CADENCE

The Katana is the signature race board of multiple ISA and ICF World Champion Shuri Araki, designed around a high-cadence paddling style. Developed with his father and coach Takuji Araki, it introduces a racing philosophy focused on precision, efficiency and rhythm, delivering a fast, effortless glide inspired by the speed and sharpness of a katana sword.

4 x🥇 From last month’s Spanish “World Sup Festival ”(25–26 April) competition, held amid strong winds and huge swells, to the Austrian “LAKE ROCKS FESTIVAL”(16-17 May) competition, which took place on a lake with perfectly flat waters.

Shuri Araki achieved a truly significant feat, winning two gold medals each in the Long Distance & Technical events and a total of four gold medals in both races, which were held under completely opposite conditions, using only one “KATANA”

WHAT’S NEW?

  • All-new race model designed and raced by multiple ISA and ICF World Champion Shuri Araki
  • Developed around a high-cadence paddling technique, prioritizing rhythm, efficiency and precision
  • Introduces the narrow Box Tail™ design (patent pending) for improved glide and cadence-driven acceleration
  • Represents a new racing philosophy, focused on speed through cadence rather than brute-force power
  • Sits between the Gen R and All Star in the race lineup, offering a unique paddling feel and performance style

Sizes · Prices

KATANA sizes and prices
Size · specificationItem IDPrice
14’0”X20.5” 270L CRS D2
Specification notes

The 20.5″ Katana is Shuri Araki’s signature race model, designed for elite paddlers seeking maximum speed through a high-cadence paddling style. The narrow outline and Box Tail™ deliver explosive acceleration and exceptional glide for flatwater and technical racing conditions. D2 technology optimizes the internal structure to reduce weight while maintaining a strong, impact-resistant outer shell. Strategic reinforcements are positioned in key load areas to maintain durability and reliability in demanding race conditions.

2014270101029₩8,050,000

Description

WHAT CAN YOU EXPECT FROM THE SHAPE?

The Katana is designed for elite racers who paddle at high cadence with precision. It feels fast, light, and highly responsive, with sharp straight-line tracking and excellent stability at speed. The narrow Box Tail™ allows the board to lift and accelerate forward efficiently, encouraging a rhythmic pumping motion rather than long, powerful strokes.

Built for racers aiming to compete at the highest level.

KEY HIGHLIGHTS

Developed around Shuri Araki’s proven high-cadence paddling technique for elite-level efficiency.

A patented tail design that combines straight-line stability with unprecedented maneuverability.

Raced to multiple ISA and ICF world titles by Shuri Araki at the highest level of competition.

Key Features

NARROW BOX TAIL™

A unique tail design that lifts and accelerates the board forward, enabling efficient pumping while maintaining strong straight-line stability.

REARWARD STANDING POSITION

Standing area positioned further back to optimise trim and fully engage the Box Tail™, helping generate forward propulsion.

VERY HARD TAIL RAIL EDGES

Sharp rail edges at the tail act like additional fins, improving tracking and reducing reliance on the main fin

SHARP PIERCING NOSE

Inspired by the Katana sword, the sharp nose slices through water and chop, maintaining speed and control at high cadence.

DUGOUT DESIGN

The dugout lowers the center of gravity, increasing stability and improving control in choppy open-water conditions.

DUAL SIDE DRAINAGE HOLES

Drainage holes quickly evacuate water from the deck, allowing rapid recovery in technical and choppy conditions.

REFINED ROCKER PROFILE

Slightly lower nose and tail rocker than the All Star, combined with added vee to maintain glide and maneuverability.

PARALLEL SPEED OUTLINE

Parallel mid-section improves stability and glide, while the narrow nose and tail increase speed and paddling efficiency.

MULTI-STAGE VEE BOTTOM

Rounded vee nose helps glide into bumps. Vee mid-section with slight double concave improves tracking, while progressive vee tail aids buoy turns and maneuvering.

Available Sizes

14’0″ x 20.5″ / 270 L KATANA

  • Length: 14’0″ / 426.7 cm
  • Width: 20.5″ / 52.1 cm
  • Rider weight: Up to 75 kg

The 20.5″ Katana is Shuri Araki’s signature race model, designed for elite paddlers seeking maximum speed through a high-cadence paddling style. The narrow outline and Box Tail™ deliver explosive acceleration and exceptional glide for flatwater and technical racing conditions.

Available Constructions:

  • Carbon Reflex Sandwich D2

Constructions

CARBON REFLEX SANDWICH D2

ULTRA-LIGHT RACE PERFORMANCE

Our lightest full Carbon race construction to date, Carbon Reflex D2 is our premium SUP Race construction, designed for maximum stiffness, controlled flex and rapid acceleration. The lightweight structure delivers a lively feel underfoot, responding instantly with every stroke while maintaining the lowest possible weight.

D2 technology optimizes the internal structure to reduce weight while maintaining a strong, impact-resistant outer shell. Strategic reinforcements are positioned in key load areas to maintain durability and reliability in demanding race conditions.

  • Full Carbon reinforcements further increase structural strength while keeping overall weight extremely low.
  • Ultra-light 100g Biaxial Carbon for an exceptional strength-to-weight ratio
  • Multiple Carbon reinforcements on the rails and bottom tune flex and recoil into acceleration
  • UD 80 Carbon rail band increases stiffness for maximum power transfer
  • Reinforced nose and tail protect against impact during drafting and racing
  • Full PVC standing area protects against heel dents at minimal weight
  • Sharp edges reinforced with lightweight Carbon for added durability