TWINFIN
FAST LINES, FREE SLIDES
Manufacturer name: STB SUP TWINFIN
From ₩2,750,000
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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Product overview
Experience a board engineered for speed and freedom. The TwinFin’s unique shape, with a pronounced hip behind the fins, delivers dynamic, agile turns and a loose, skate-like ride that lets you carve high-line rail maneuvers effortlessly. Its innovative channel tail boosts acceleration and aids tail recovery during radical slides, keeping you in control on every wave. Whether you’re tackling small, less-powerful surf or challenging overhead conditions, the TwinFin empowers intermediate surfers to push harder turns while offering advanced riders a high-performance, fluid ride.
WHAT’S NEW?
- NEW Graphics
STARBOARD · YOUTUBE
TwinFin on video
Take a closer look at the product in Starboard's official videos.
Sizes · Prices
| Size · specification | Item ID | Price |
|---|---|---|
7'9”X28” 103L XTEC CARBONSpecification notesBali testing proved the 7’9” has impressive speed and wave-face agility, letting you flow effortlessly. Ideal for riders up to 95kg, its loose tail recovers quickly to link maneuvers. Fast lines, free slides—pure fun. | 2007270501003 | ₩2,750,000 |
8'0”X29” 112L XTEC CARBONSpecification notes8’0” x 29” A late addition due to demand. At 112L, it offers more stability than the 7’9″ while the shorter length and slightly narrower outline make it more maneuverable than the 8’3″. | 2008270501002 | ₩2,750,000 |
8'3”X30” 125L XTEC CARBONSpecification notesRetro feel meets modern performance on the 8’3”. Enjoy smooth acceleration, arching high-line turns, and a snappy fin release. Ideal up to 110kg, its subtle vee off the channel keeps flow seamless—a true twin fin blend of style and speed. | 2008270501004 | ₩2,750,000 |
8'6”X31” 134L XTEC CARBONSpecification notes8’6” x 31” Designed for riders wanting a stable platform for longer sessions or choppier days. Wider than the 8’3″ x 30″, but slightly faster and more maneuverable than the 8’9″ x 32″. A late addition with strong demand. | 2008270501006 | ₩2,810,000 |
8'9”X32” 150L XTEC CARBONSpecification notes“Fast, sexy, and super fun”—the 8’9” (150L) suits riders up to 120kg seeking stability with performance. Signed off by Pete Cox, it offers smooth carves, quick acceleration, and easy control—speed meets balance every session. | 2008270501008 | ₩2,810,000 |
9'0”X33” 166L XTEC CARBONSpecification notesAt 166L, the 9’0” suits riders up to 130+kg, delivering surprising control despite its wide tail. It rides high, drives turns effortlessly, and gains speed without stepping back. From beach breaks to better setups, it’s your fishy all-round go-to. Approved by Pete Cox. | 2009270501002 | ₩2,810,000 |
6'9”X24” 70L CRSpecification notesThe 6’9” wowed Ben and Zane with unmatched speed and tail-blow ability. Fast, free, and loose, it’s perfect for advanced riders up to 70kg who crave pushing the limits of control. From mushy waves to overhead, expect a fast ride. | 2006270501001 | ₩4,570,000 |
7'3”X26” 85L CRSpecification notesFluid rail turns, spray-throwing cutbacks, and seamless transitions—the 7’3” highlights the Twin’s performance. Ollie and Trev loved it at 80-85kg. This shape handles overhead Ulutwatu yet rules the fun in smaller surf. | 2007270501001 | ₩4,640,000 |
7'9”X28” 103L CRSpecification notesBali testing proved the 7’9” has impressive speed and wave-face agility, letting you flow effortlessly. Ideal for riders up to 95kg, its loose tail recovers quickly to link maneuvers. Fast lines, free slides—pure fun. | 2007270501002 | ₩4,640,000 |
8'0”X29” 112L CRSpecification notes8’0” x 29” A late addition due to demand. At 112L, it offers more stability than the 7’9″ while the shorter length and slightly narrower outline make it more maneuverable than the 8’3″. | 2008270501001 | ₩4,640,000 |
8'3”X30” 125L CRSpecification notesRetro feel meets modern performance on the 8’3”. Enjoy smooth acceleration, arching high-line turns, and a snappy fin release. Ideal up to 110kg, its subtle vee off the channel keeps flow seamless—a true twin fin blend of style and speed. | 2008270501003 | ₩4,740,000 |
8'6”X31” 134L CRSpecification notes8’6” x 31” Designed for riders wanting a stable platform for longer sessions or choppier days. Wider than the 8’3″ x 30″, but slightly faster and more maneuverable than the 8’9″ x 32″. A late addition with strong demand. | 2008270501005 | ₩4,740,000 |
8'9”X32” 150L CRSpecification notes“Fast, sexy, and super fun”—the 8’9” (150L) suits riders up to 120kg seeking stability with performance. Signed off by Pete Cox, it offers smooth carves, quick acceleration, and easy control—speed meets balance every session. | 2008270501007 | ₩4,740,000 |
9'0”X33” 166L CRSpecification notesAt 166L, the 9’0” suits riders up to 130+kg, delivering surprising control despite its wide tail. It rides high, drives turns effortlessly, and gains speed without stepping back. From beach breaks to better setups, it’s your fishy all-round go-to. Approved by Pete Cox. | 2009270501001 | ₩4,740,000 |
Description
WHAT CAN YOU EXPECT FROM THE SHAPE?
The TwinFin is best for smaller, weaker waves, letting intermediate surfers perform more radically with less technique. It stays lively throughout the wave, generating easy speed and quick recoveries. Despite its small-wave focus, it can handle well overhead surf, pumping off the bottom and racing sections.
COMPARISON TO THE SPICE AND PRO
Compared to the Spice and Pro, the Twin is looser and unlocks speed faster. The Pro remains the high-performance choice in bigger, critical conditions, delivering top hold and control. The Spice offers versatility with quad or thruster setups, plus bevel rails for smooth rail-to-rail transitions and added hold. The Twin complements but doesn’t replace either, appealing to those seeking relaxed lines, high-speed arcs, and tail slide turns.
READ THE WHITE PAPER
Key Features
ULTIMATE SPEED & FLOW
Enjoy fast down-the-line speed with reduced drag and a refined channel. The Twin Fin keeps you flowing even through weaker sections, linking maneuvers with ease and maintaining momentum.
EFFORTLESS TURNS & LOOSER FEEL
A looser, ‘skatey’ ride makes sharp pivots and tail slides second nature. The hip and moon tail create a natural pivot point, ensuring quick direction changes and smooth transitions.
PRONOUNCED HIP & MOON TAIL
A subtle break behind the fins narrows the tail for crisp pivots, delivering a loose yet controlled feel for snappier turns.
CHANNEL TAIL RELEASE
Generates lift and extra speed while broadening the sweet spot for both front- and back-foot surfers, aiding recovery and maneuver setups.
FINE RAILS TO THE TAIL
Boosts responsiveness and agility. Fuller nose rails help drive down the line, while thinner nose rails cut swing weight for faster rotations.
DOMED OR FLATTER DECKS
Smaller sizes feature a domed deck for sensitivity and thinner rails, while wider models have a flatter deck for added stability and comfort.
TWINZ FIN SETUP
Two large fins minimize drag for faster rides, giving both solid hold and easy tail release. Add a nubster fin for extra control and bite in bigger surf.
ALL-LEVEL VERSATILITY
Excels in small waves for easy speed and flow, yet retains enough bite to handle well-overhead conditions with confidence and style.
Available Sizes
9’0” x 33” / 166 L TWINFIN
- Length: 9’0″ / 277.1 cm
- Width: 33.6″ / 85.3 cm
At 166L, the 9’0” suits riders up to 130+kg, delivering surprising control despite its wide tail. It rides high, drives turns effortlessly, and gains speed without stepping back. From beach breaks to better setups, it’s your fishy all-round go-to. Approved by Pete Cox.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
8’9” x 32” / 150 L TWINFIN
- Length: 8’8″ / 269.1 cm
- Width: 32.1″ / 81.6 cm
“Fast, sexy, and super fun”—the 8’9” (150L) suits riders up to 120kg seeking stability with performance. Signed off by Pete Cox, it offers smooth carves, quick acceleration, and easy control—speed meets balance every session.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
8’6” x 31” / 134 L TWINFIN
- Length: 8’6″ / 259.1 cm
- Width: 31″ / 78.7 cm
Designed for riders wanting a stable platform for longer sessions or choppier days. Wider than the 8’3″ x 30″, but slightly faster and more maneuverable than the 8’9″ x 32″. A late addition with strong demand.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
8’3” x 30” / 125 L TWINFIN
- Length: 8’3″ /253.7 cm
- Width: 30″ / 76.3 cm
Retro feel meets modern performance on the 8’3”. Enjoy smooth acceleration, arching high-line turns, and a snappy fin release. Ideal up to 110kg, its subtle vee off the channel keeps flow seamless—a true twin fin blend of style and speed.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
8’0” x 29” / 112 L TWINFIN
- Length: 8’0″ / 243.8 cm
- Width: 29″ / 73.7 cm
A late addition due to demand. At 112L, it offers more stability than the 7’9″ while the shorter length and slightly narrower outline make it more maneuverable than the 8’3″.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
7’9” x 28” / 103 L TWINFIN
- Length: 7’8″ / 238.7 cm
- Width: 28″ / 70.9 cm
Bali testing proved the 7’9” has impressive speed and wave-face agility, letting you flow effortlessly. Ideal for riders up to 95kg, its loose tail recovers quickly to link maneuvers. Fast lines, free slides—pure fun.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
- Xtec Carbon (ex. Limited Series)
7’3” x 26” / 85 L TWINFIN
- Length: 7’3″ / 223.2 cm
- Width: 26″ / 66 cm
Fluid rail turns, spray-throwing cutbacks, and seamless transitions—the 7’3” highlights the Twin’s performance. Ollie and Trev loved it at 80-85kg. This shape handles overhead Ulutwatu yet rules the fun in smaller surf.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
6’9” x 24” / 70 L TWINFIN
- Length: 6’8″ / 207.7 cm
- Width: 24.5″ / 62.2 cm
The 6’9” wowed Ben and Zane with unmatched speed and tail-blow ability. Fast, free, and loose, it’s perfect for advanced riders up to 70kg who crave pushing the limits of control. From mushy waves to overhead, expect a fast ride.
Available Constructions:
- Carbon Reflex (ex. Acute Custom Carbon)
Constructions
CARBON REFLEX
PREMIUM PERFORMANCE CONSTRUCTION
Carbon Reflex is our premium SUP surf construction, designed for maximum response, controlled flex, and fast recoil. It delivers a light, lively feel underfoot, reacting instantly through turns while staying strong and composed.
EPS core density is tuned by board size, with lighter cores paired with thermoformed PVC rail stringers to maintain strength without sacrificing flex. High-grade biaxial carbon fine-tunes flex and control, allowing the board to load smoothly and spring out of turns.
- Rapid recoil from 45° biaxial carbon
- PVC rail stringers used with lighter EPS cores
- EPS core density tuned by board size
- Targeted standing area reinforcements
- 0.6mm Australian pine for heel durability
- Full carbon reinforcement for strength at low weight
- Full Carbon Reinforcement
- Carbon reinforcements maximise strength while keeping overall weight low.
XTEC CARBON
CORE PERFORMANCE CONSTRUCTION
XTEC Carbon is a core performance construction built around Carbon Load Frame Technology, balancing weight, durability, and performance. Precision placed UD carbon controls flex and improves recoil through turns.
An expanding epoxy resin system improves internal bonding, while T-Stringers and Wood Omega Stringers reinforce high-stress areas. The result is a responsive, durable construction designed for everyday performance.
- Carbon Load Frame Technology with UD carbon
- Expanding epoxy resin for internal bonding
- Twin T-Stringers for increased total breakage strength.
- Wood Omega Stringers deck and bottom.
- Reinforcements in standing area, fins, nose, tail, and rails
SPECIFICATIONS
| Model - TwinFin | TWIN FIN 6'9”X24” | TWIN FIN 7'3”X26” | TWIN FIN 7'9”X28” | TWIN FIN 8'0”X29” | TWIN FIN 8'3”X30” | TWIN FIN 8'6”X31” | TWIN FIN 8'9”X32” | TWIN FIN 9'0”X33” |
|---|---|---|---|---|---|---|---|---|
| Consruction | Carbon Reflex | Carbon Reflex | Carbon Reflex Xtec Carbon | Carbon Reflex Xtec Carbon | Carbon Reflex Xtec Carbon | Carbon Reflex Xtec Carbon | Carbon Reflex Xtec Carbon | Carbon Reflex Xtec Carbon |
| Max Rider Weight | Up to 70 kg | Up to 85 kg | Up to 95 kg | Up to 100 kg | Up to 110 kg | Up to 115 kg | Up to 120 kg | Up to 130 kg |
| Length | 6'9" / 205.7 cm | 7'3" / 221 cm | 7'9" / 236.2 cm | 8'0" / 243.8 cm | 8'3" / 251.5 cm | 8'6" / 259.1 cm | 8'9" / 266.7 cm | 9'0" / 274.3 cm |
| Width | 24" / 61 cm | 26" / 66 cm | 28" / 71.1 cm | 29" / 73.7 cm | 30" / 76.2 cm | 31" / 78.7 cm | 32" / 81.3 cm | 33" / 83.8 cm |
| Thickness | 4" / 10.2 cm | 4.3" / 10.9 cm | 4.5" / 11.4 cm | 4.5" / 11.4 cm | 4.7" / 11.9 cm | 4.7" / 11.9 cm | 5" / 12.7 cm | 5.1" / 13 cm |
| Tail Width | 16.8" / 42.7 cm | 17.3" / 44.1 cm | 18.3" / 46.4 cm | 18.7" / 47.6 cm | 19" / 48.8 cm | 19.4" / 49.4 cm | 20.1" / 51.1 cm | 20.8" / 52.8 cm |
| Volume | 70 L | 85 L | 103 L | 112 L | 125 L | 134 L | 150 L | 166 L |
| Fin Box | Thruster | Thruster | Thruster | Thruster | Thruster | Thruster | Thruster | Thruster |
| Fins | Twinz Fin Center Carbon/Twinz Fin Side fin Carbon | Twinz Fin Center Carbon/Twinz Fin Side fin Carbon | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore | Carbon Reflex: Twinz Fin Center Carbon/Twinz Fin Side fin Carbon Xtec Carbon: Twinz Fin Center Armacore/Twinz Fin Side fin Armacore |
| Weight (Tolerance +/- 5%) | - | - | - | - | - | - | - | - |
| TWIN FIN | ||
|---|---|---|
| Item name | Item code | EAN code |
| STB SUP TWIN FIN 6'9”X24” 70L CR \ S26D27 | 5638604266 | 8859890203501 |
| STB SUP TWIN FIN 7'3”X26” 85L CR \ S26D27 | 5638604267 | 8859890203518 |
| STB SUP TWIN FIN 7'9”X28” 103L CR \ S26D27 | 5638604268 | 8859890203525 |
| STB SUP TWIN FIN 7'9”X28” 103L XTEC CARBON \ S26D27 | 5638604519 | 8859890203532 |
| STB SUP TWIN FIN 8'0”X29” 112L CR \ S26D27 | 5638604270 | 8859890203549 |
| STB SUP TWIN FIN 8'0”X29” 112L XTEC CARBON \ S26D27 | 5638604521 | 8859890203556 |
| STB SUP TWIN FIN 8'3”X30” 125L CR \ S26D27 | 5638604272 | 8859890203563 |
| STB SUP TWIN FIN 8'3”X30” 125L XTEC CARBON \ S26D27 | 5638604523 | 8859890203570 |
| STB SUP TWIN FIN 8'6”X31” 134L CR \ S26D27 | 5638604274 | 8859890203587 |
| STB SUP TWIN FIN 8'6”X31” 134L XTEC CARBON \ S26D27 | 5638604525 | 8859890203594 |
| STB SUP TWIN FIN 8'9”X32” 150L CR \ S26D27 | 5638604276 | 8859890203600 |
| STB SUP TWIN FIN 8'9”X32” 150L XTEC CARBON \ S26D27 | 5638604527 | 8859890203617 |
| STB SUP TWIN FIN 9'0”X33” 166L CR \ S26D27 | 5638604278 | 8859890203624 |
| STB SUP TWIN FIN 9'0”X33” 166L XTEC CARBON \ S26D27 | 5638604529 | 8859890203631 |
