Data sheet updated in May 2026
The Blackbird Razor 847-345-75 complete hydrofoil set.This full carbon Blackbird set features a high-aspect front wing. It delivers exceptional glide, unmatched pumping capability, and top-tier performance for downwind and prone surf. Experience a smooth, fast ride. It is also infinitely efficient.
KEY INFORMATION
SABFOIL RAZOR 847 BLACKBIRD COMPLETE FOIL KIT, INTEGRATED BACKTAIL
What we like
- Razor 847 high-aspect Front Wing: At 784 cm² with an AR of 9.2, it offers infinite glide and surprising pumping capability for its size.
- Progressive 345 stabilizer: This 150 cm² stabilizer, with an AR of 8.2, ensures clean and stable flow even through delicate transitions.
- Experience top-tier performancein downwind and prone surf, with incredible speed and control, and a long-distance glide that is remarkable.
- Blackbird 75 mast: Crafted from UHM Carbon + W-Core, this compact 750 mm mast is ideal for surf foil.
- MONOBLOC Full Carbon construction: Engineered to minimize flex and torsion.
- Optimal speeds of 13-15 / 22-24 knots, focused on maximizing glide and efficiency.
Kit Type
Integrated Backtail
Color
Black
Disciplines
Wing foil, Surf foil, Downwind
Recommended for
Freeride, Wave, Downwind, SUP, Pumping.
Included in the kit
- ✓ Sabfoil Razor 847 Blackbird Front Wing (WR847/BB) x 1
- ✓ Sabfoil Progressive 345 Blackbird Stabilizer (SP345/BB) x 1
- ✓ Sabfoil Piantone Blackbird 75 Mast (M75/BB) x 1
- ✓ Sabfoil Carbon Rail Plate with titanium inserts (CP02K/Ti) x 1
- ✓ Sabfoil Screw Set for Q02K (MHQ02) x 1
- ✓ Foam Pads for plate (MH144) x 1
- ✓ Hardware Carbon Plate to Mast (MH164) x 1
- ✓ Hardware Carbon Plate to Rail Board (MH160) x 1
- ✓ Hardware Kit Blackbird Glider (MH171) x 1
- ✓ Additional Blackbird screw set MH173 x 1
- ✗ Board (sold separately)
- ✗ Protection bag (sold separately)
DETAILED DESCRIPTION
Extreme Glide, Uncompromising Efficiency
The Razor Line suits riders who demand a pure, fluid, and continuous flight experience. This high-aspect front wing delivers exceptional glide, unprecedented pumping capability, and remarkable performance in downwind and prone surf.
Power, Flow, and Precision in a Single Profile
Every detail of the Razor's design has been optimized to translate your every input into speed and directional control. The result is an ultra-efficient front wing, capable of maintaining clean and stable water flow even through the most delicate transitions. You'll experience infinite glide thanks to its high-aspect profile and surprising pumping capability for its size. It offers speed and control over long distances, and fluid response in carves and glides. This complete foil set includes the Blackbird Razor 847 Front Wing, the Progressive 345 stabilizer, and the UHM Blackbird 75 mast. To experiment with different fuselage lengths or use your Kraken stabilizers, try it with the Blackbird Back Tail fuselages for maximum modularity!
Blackbird Technology: Engineered to Perform
Experience superior hydrodynamic efficiency and reduced drag: the streamlined shape and monobloc construction slice through water and air, improving flow and reducing turbulence for smoother transitions, touchdowns, and rail-to-rail passages. Active Lift and trim optimization: the Front Wing generates additional lift, allowing for earlier take-off and reducing pressure on the rear stabilizer, for a flatter, faster, and more balanced ride even at high speed. Extreme structural stiffness: the aerospace-inspired fuselage design increases torsional stiffness by over 20% compared to cylindrical fuselages. Full Carbon MONOBLOC construction: the integrated monobloc connection between the front wing, fuselage, and tail ensures minimal flex and torsion, smoother transitions, instant feedback and control, and a truly connected ride feel.
Who is it for?
The Razor 847 Integrated kit is designed for riders seeking maximum efficiency and glide, downwind and prone surf enthusiasts, those who want a foil capable of flying further with minimal effort, and experienced foilers eager to push their limits with a high-aspect setup.
| Specifications | |
|---|---|
| Sabfoil Reference | KR-847-345-75/BB |
| Range | Blackbird |
| Range | Razor |
| Type | Integrated Backtail (integrated fuselage) |
| Disciplines | Wing foil, Surf foil, Downwind |
| Recommended for | Freeride, Wave, Downwind, SUP, Pumping |
| Front Wing, Wingspan | 847 mm |
| Front Wing, Surface | 784 cm² |
| Front Wing, Aspect Ratio | 9.2 |
| Front Wing, Root Chord | 115 mm |
| Front Wing, Maximum thickness | 16 mm |
| Stabilizer, Wingspan | 345 mm |
| Stabilizer, Surface | 150 cm² |
| Stabilizer, Aspect Ratio | 8.2 |
| Stabilizer, Root Chord | 64.4 mm |
| Stabilizer, Maximum thickness | 7.3 mm |
| Fuselage, Total length | 640 mm |
| Mast, Height | 750 mm |
| Mast, Construction | UHM Carbon + W-Core |
| Mast, Board Connection | Carbon Plate |
| Total Weight (approx.) | 3.5 kg |
| Take-off speed | 13 to 15 knots |
| Top speed (80 kg rider) | 22 to 24 knots |
| Color | Black |
FAQ: SABFOIL RAZOR 847 BLACKBIRD INTEGRATED COMPLETE FOIL KIT
Sabfoil engineered the KR-847-345-75/BB complete foil kit for riders who demand maximum efficiency and glide. It's ideal for downwind and prone surf enthusiasts, foilers seeking to fly further with minimal effort, and experienced riders eager to explore a high-aspect setup. This complete foil kit excels in Freeride, Wave, Downwind, SUP, and Pumping disciplines.
Both complete foil kits share the same M75/BB mast. The 737 (€1869) is designed for surf and carve, featuring a smaller, narrower Front Wing (648 cm², AR 8.4) and a Flat 325 stabilizer. The 847 (this complete foil kit, €1889) delivers superior glide and pumping capability with a larger, high-aspect Front Wing (784 cm², AR 9.2) and a Progressive 345 stabilizer. The 847 adds Downwind to its disciplines, while the 737 remains more surf-oriented.
Sabfoil offers two configurations of the Razor 847 complete foil kit. These are the Integrated Backtail (KR-847-345-75/BB), which features a fuselage integrated with the Progressive 345 stabilizer, and the Modular Full Carbon (KR847-FCM-SDW360-75/BB), which costs €1889 and has an FC/M modular fuselage and a Downwind 360 stabilizer. Sabfoil offers the Modular version for riders who want to experiment with different stabilizers.
The Razor range is available in four Front Wing sizes: 737 (648 cm²), 847 (this complete foil kit, 784 cm²), 977 (953 cm²), and 1077 (1069 cm²). The larger the Front Wing, the earlier the take-off and the more it's oriented towards light wind, pumping, and downwind riding.
Yes, the complete foil kit includes all necessary components: the WR847/BB Front Wing, a Progressive 345 stabilizer integrated into the fuselage, the Piantone Blackbird 75 mast, a Carbon Rail plate with titanium inserts (CP02K/Ti), and the complete screw set (MHQ02, MH144, MH160, MH164, MH171, MH173). Only the board needs to be provided.
Sabfoil offers the Cover Mast A bag (reference MA021) for the M75/BB mast, which is explicitly compatible with M63K, M73K, M73PLK, M75BB, and M76. For the Front Wing, Sabfoil offers the Cover Front Wing D bag (reference MA028), explicitly compatible with WR847, WR977, WR1077, WB800, WB1000, WR880, WR980, WRP875, WRP975, WRP1075, and W1110.
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