Page updated May 2026
The Sabfoil Blackbird Razor 847 is a high-aspect front wing with exceptional glide and remarkable pumping capability. It delivers top-tier performance in downwind and prone surf conditions. Smooth, fast, and highly efficient.
KEY INFORMATION
SABFOIL RAZOR BLACKBIRD 847, DOWNWIND / PRONE SURF FRONT WING
What we like
- Infinite glide from its high-aspect profile.
- Surprising pumping capability for its size.
- Speed and control over long distances.
- Smooth and fluid response in carves and glides.
- MONOBLOC Full Carbon construction: a one-piece connection between the front wing, fuselage, and tail.
Available size
784 cm²
Color
Black
Disciplines
Wing Surf Downwind
Recommended for
Wave, Freeride, Surf, Downwind, SUP, Pumping. Versatile for both downwind and prone surf.
Included / Not included
- ✓ Sabfoil Razor Blackbird 847 Front Wing (WR847/BB) x 1
- ✓ Mast to Blackbird Screw Set (MH172) x 1
- ✗ Fuselage (sold separately)
- ✗ Mast and stabilizer (sold separately)
- ✗ Protective bag
DETAILED DESCRIPTION
Extreme Glide, Uncompromising Efficiency
The Razor range is designed for riders looking for a pure, fluid, and continuous foiling experience. This high-aspect front wing is built to deliver exceptional glide, unprecedented pumping capability, and outstanding performance in downwind and prone surf conditions.
Power, Flow, and Precision in a Single Profile
Every detail of the Razor's design is optimized to convert rider 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. It delivers infinite glide from its high-aspect profile, surprising pumping power for its size, speed and control over long distances, and a smooth, fluid response through carves and glides. For the ultimate setup, pair the WR847/BB with a Blackbird stabilizer and a Sabfoil mast. Alternatively, combine it with Blackbird Back Tail fuselages to use Kraken stabilizers and enjoy maximum modularity.
Blackbird Technology, Engineered to Perform
Hydrodynamic efficiency and reduced drag: The streamlined shape and monobloc construction slice through water and air, improving flow and reducing turbulence. Active Lift and trim optimization: This 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 speeds. Extreme structural stiffness: The aerospace-inspired fuselage design increases torsional stiffness by over 20% compared to cylindrical fuselages.
Who is it for?
The Razor 847 is for riders seeking maximum efficiency and glide. It's perfect for downwind and prone surf enthusiasts, foilers who want to fly further with minimal effort, and experienced foilers looking to push their limits with a high-aspect setup. Its MONOBLOC Full Carbon construction guarantees minimal flex and torsion, delivering smoother transitions, instant feedback and control, and a truly connected ride feel.
| Specifications | |
|---|---|
| Product Code | WR847/BB |
| Range | Blackbird |
| Series | Razor |
| Disciplines | Wing, Surf, Downwind |
| Recommended for | Wave, Freeride, Surf, Downwind, SUP, Pumping |
| Surface | 784 cm² |
| Wingspan | 847 mm |
| Root Chord | 115 mm |
| Aspect Ratio | 9.2 |
| Maximum thickness | 16 mm |
| Weight (approx.) | 1150 g |
| Construction | MONOBLOC Full Carbon |
| Take-off speed | 10 to 12 knots |
| Top speed (80 kg rider) | 22 to 24 knots |
| Mast screw set | Sabfoil MH172 (Mast to Blackbird, included) |
| Color | Black |
FAQ, SABFOIL RAZOR BLACKBIRD 847
Sabfoil describes the WR847/BB as a front wing for riders seeking maximum efficiency and glide, downwind and prone surf enthusiasts, and experienced foilers who want to fly further with minimal effort. For an 80 kg rider, it takes off at 10-12 knots and reaches a top speed of 22-24 knots.
Both front wings share the same Razor philosophy, featuring a high-aspect profile and MONOBLOC Full Carbon construction, but they target different uses. The 847 (784 cm², AR 9.2) takes off from 10-12 knots and has a top end of 22-24 knots, making it more accessible and optimized for both downwind and prone surf. The 737 (648 cm², AR 8.4) takes off at 13-15 knots and reaches 25-27 knots, making it faster and specifically designed for prone surf. The range also includes the WR977/BB and WR1077/BB.
Sabfoil lists the following compatible fuselages: FBB/S, FBB/M, and FBB/L (Blackbird Backtail Alu sizes S, M, and L). The fuselage is not supplied with the front wing.
Yes, the front wing comes with the Sabfoil MH172 screw set ("Mast to Blackbird"), ensuring it can be assembled with masts from the range.
Sabfoil pairs the Razor Blackbird 847 with the SP345/BB stabilizer (Progressive 345 Stabilizer Blackbird).
Sabfoil recommends the Cover Front Wing D (product code MA028), which is explicitly compatible with the WR847/BB, as well as the WR977/BB and WR1077/BB.
▶ Need some advice?
GlissEvolution, 2c avenue du Gulfstream, 44380 Pornichet (Loire-Atlantique)
09 62 64 74 77 | WhatsApp: 07 83 28 39 94, Tuesday to Saturday, 10 am-1 pm / 3 pm-7 pm
Test centre available by appointment
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