Sheet updated September 2026
The Duotone Mast Slim 2.0 D/LAB 2025 is Duotone's premium monobloc mast. It has a thin profile, exceptional stiffness, and low drag. This delivers maximum speed and precise turns. Each size is purpose-built: the 76 cm is for prone and downwind, the 84 cm excels in freestyle, freeride, and most wave conditions, while the 94 cm is designed for freerace and Surf in established conditions. High-modulus carbon fibers are precisely oriented for optimal flex and torsional stiffness. A redesigned base reduces drag, and the 3BS connection is compatible with 3BS fuselages and D/LAB wings.
KEY INFORMATION
DUOTONE MAST SLIM 2.0 D/LAB 2025 - High-modulus carbon monobloc mast
What we like
- Monobloc: The mast and base are a single piece. This means no connections to develop play.
- Thin profile: Experience very low drag, which translates to speed and a smooth glide.
- Oriented high-modulus carbon: This construction provides optimal flex and torsional stiffness, giving you explosive jumps and precise turns.
- Redesigned base: Enjoy less resistance during take-off, landing, and impacts with the water surface.
- Ventilation resistant: Your glide remains continuous, especially with larger mast sizes.
- 3BS connection: This mast is compatible with 3BS fuselages and D/LAB wings.
Use
Freeride • Waves • Prone • Downwind • Freerace
Available sizes
Color
Carbon
Included / Not included
✔️ Included: Mast with its base, 3 M8 x 50 TX45 screws for the 3BS connection
❌ Not included: Fuselage, wings, stabilizer. The fourth 3BS+ screw (M6 x 25 TX30) is delivered with the corresponding fuselage.
DETAILED DESCRIPTION
Duotone's thinnest mast
The Duotone Mast Slim 2.0 D/LAB 2025 is engineered for uncompromising performance and control. Its thin profile is exceptionally stiff and generates minimal drag. This allows for maximum speeds and precise, playful turns. Duotone states their team has tested and approved it.
A size for every use
Each length is developed individually. The 76 cm is for prone and downwind, the 84 cm for freestyle, freeride, and most wave days, and the 94 cm for freerace and Surf in established conditions. High-modulus carbon fibers are precisely oriented to achieve the desired flex and torsional stiffness.
Base and drag
The new base design is optimized to reduce drag. It significantly decreases resistance during take-off and jump landings. Length and chord thickness are chosen for the best compromise between strength and drag. The profile resists ventilation, especially in larger sizes, for continuous glide.
Dimensions and connection
The 76 cm mast has a 108 mm chord, is 13.5 mm at its thinnest point, and weighs 1.85 kg. The 84 cm mast has a 110 mm chord, is 14.5 mm, and weighs 1.88 kg. The 94 cm mast has a 118 mm chord, is 13.5 mm, and weighs 2.20 kg, all within 5%. It features a 3BS connection with three M8 x 50 TX45 screws included, requiring a tightening torque of 15 Nm. The fourth 3BS+ screw comes with the fuselage. Duotone advises against jumping with wings over 100 cm wingspan.
SIZE GUIDE
| Length | Chord (mm) | Min. thickness (mm) | Weight (kg) |
|---|---|---|---|
| 76 cm | 108 | 13.5 | 1.85 |
| 84 cm | 110 | 14.5 | 1.88 |
| 94 cm | 118 | 13.5 | 2.20 |
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Type | Monobloc foil mast |
| Material | High-modulus carbon |
| Lengths | 76, 84, 94 cm |
| Connection | 3BS, 3BS+ compatible (fourth screw included with the fuselage) |
| Screw set | 3 x M8 x 50 TX45, tightening torque 15 Nm; M6 10 Nm |
| Use | 76 for prone and downwind, 84 for freestyle, freeride and waves, 94 for freerace and Surf |
| Duotone Warning | Avoid jumping with wings over 100 cm wingspan. |
| Model Year | 2025 |
FAQ - DUOTONE MAST SLIM 2.0 D/LAB 2025
For advanced riders using a Duotone 3BS foil who want the brand's stiffest, thinnest mast. Use it for wing, prone, downwind, or freerace.
76 cm for prone and downwind. 84 cm for everyday freestyle and freeride, and for waves. 94 cm for freerace and surf in established conditions. This gives you more rail clearance.
It features monobloc construction, a thin profile with very low drag, the stiffness of high-modulus carbon, an optimized base, and resistance to ventilation.
Pair it with a Duotone 3BS or 3BS+ fuselage and D/LAB wings. You will also need a board plate compatible with the base, and a board suitable for your chosen discipline.
We are a kite and wing shop in Pornichet, on the Atlantic coast, and we also sell surf gear. We carry this type of product all year. If you have a doubt about size or compatibility, call us or visit the shop. We will answer you with the product in hand.
▶ Need advice?
GlissEvolution, 2c avenue du Gulfstream, 44380 Pornichet (Loire-Atlantique)
09 62 64 74 77 | WhatsApp: 07 83 28 39 94, Tuesday to Saturday, 10am-1pm / 3pm-7pm
Test center available by appointment
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