Foil Set Razor PRO 825-653-370/73 or 83

The Foil Set Razor PRO 825-653-370 is a high-performance and very versatile surf foil kit, designed for riders who want to surf any type of wave while maintaining excellent performance in downwind and fast freeride. The Razor PRO 825 is designed to maximize performance on waves and for faster downwind, and it is capable of handling any acceleration with lightning-fast response, tight turns, and plenty of drive even during radical tip breaches or when returning from the crest to the base of the wave.

The set is available in two versions: with an 830 mm mast (MK/83) and with a 730 mm mast (MK/73). The 83 mast offers more clearance over chop and waves, while the 73 mast provides a more direct and compact feel, ideal for prone surf and shallower spots; in both cases, the 370 flat stabilizer makes the foil extremely maneuverable on waves.

Main Strengths

• Razor PRO range dedicated to Downwind, Fast Downwind, Fast Freeride, Wave, Freeride, Prone Surf, and Surf.
• High aspect ratio Razor PRO 825 wing for speed, glide, and control even on powerful waves.
• Lightning-fast response to rider input, with tighter turns and great hold in radical tip breaches.
• Excellent performance in fast downwind and all-round surf foil.
• Two mast options: 830 mm (more clearance and vertical stability) or 730 mm (more responsiveness and direct feel).
• 370 flat stabilizer for maneuverability, grip, and control in turns.
• Sabfoil hydrofoil bag and Q02K quick release system included.

Available Versions (mast)

• Foil Set / Mast 83 – KRP/825-653-370/83: standard configuration with 830 mm mast for wing/surf/downwind with good height clearance.
• Foil Set / Mast 73 – KRP/825-653-370/73: more compact version with 730 mm mast for prone surf, shorebreak, and shallower spots.
• Glider only – KRP/825-653-370/GLD: version without mast, dedicated to those who already own a compatible Kraken mast.

Who It's For

• Intermediate-advanced riders who want a fast, reactive, and very versatile surf foil.
• Prone foilers looking for a single wing to surf various types of waves, from beach breaks to longer waves.
• Foilers who also do downwind and fast freeride and want a unique high-performance setup.

Components Included in the Kit

• Sabfoil Kraken mast 83 or 73 (MK/83 or MK/73, depending on the chosen version).
• Sabfoil Razor PRO 825 front wing (WRP/825).
• Sabfoil Flat 370 stabilizer (SF/370).
• Fuselage 653 T6/R8 (F653K).
• Carbon rail plate with titanium inserts (CP02K/Ti).
• Hardware kit WR680/780/820/880/980/WRP775/825/875 (MH161).
• Hardware kit S330Y/S370/S376/S399/S400/SRD339/SRD379 (MH107).
• Hardware kit F603K/F653K/F713K/F1000RD/F1001RD (MH139).
• Hardware kit Carbon Plate to Rail Board (MH160).
• Spare pins and shims for Q02K (MHQ02).
• Foam pad for plate (MH144).
• Allen wrenches, Torx wrenches, and grease (MH137).
• Negative shims for stabilizers (MHW060).
• Sabfoil Hydrofoil Bag – size L (MA008).

Technical Specifications

Razor PRO 825 Front Wing

• Wingspan: 820 mm.
• Surface area: 746 cm².
• Volume: 665 cm³.
• Aspect Ratio (AR): 8.84.
• Max chord: 112 mm.
• Max profile thickness: 16.01 mm.

Flat 370 Stabilizer

• Wingspan: 370 mm.
• Surface area: 195 cm².
• Volume: 85 cm³.
• Aspect Ratio (AR): 7.00.
• Max chord: 67.5 mm.
• Max profile thickness: 7.3 mm.

Fuselage, Mast, and Kit Weight

• Fuselage: length 653 mm.
• Mast: height 830 mm in MK/83 version, 730 mm in MK/73 version.
• Board connection: carbon plate (rail mount).
• Estimated foil kit weight: data not specified (light and rigid configuration for surf/downwind).

On-Water Performance

Usage Range and Disciplines

• Range: Razor PRO.
• Recommended for: Downwind, Fast Downwind, Fast Freeride, Wave, Freeride, Prone Surf, Surf.
• Ideal conditions: any type of wave, from beach breaks to more powerful swells, medium-strong wind.

Speed and Control

• Estimated takeoff speed: 13 – 15 knots.
• Estimated top speed (80 kg rider): 25 – 27 knots.
• Excellent control even during significant accelerations and steep sections of the wave.

Riding Feel

• Direct and reactive feel, with plenty of sensitivity underfoot.
• Tight and progressive carving, perfect for drawing radical lines from the top to the bottom of the wave.
• Effective pumping for re-entering the wave or connecting multiple sections and bumps.

Mast Choice: 83 vs 73

• Mast 83: more vertical clearance over chop and waves, greater tolerance for touchdowns, and more safety at high speeds; ideal for wing + surf and more demanding downwind.
• Mast 73: more compact, direct, and "skatey," designed for prone surf in spots with shallow depths, shorebreak, and for those seeking maximum reactivity in rail changes.

Combination Advice

• Recommended with compact prone surf foil boards or light and rigid wing/downwind boards with tracks.
• For primarily prone use: mast 73 is often preferred; for mixed surf/wing/downwind use: mast 83.
• Ideal setup for riders who want a single foil to surf different waves and do fast downwind with great feel.

Frequently Asked Questions (Q&A)

What practical difference do I feel between the version with mast 83 and the one with mast 73?

With the mast 83, you have more height clearance and more stability over chop, thus more comfort in big waves and at high speeds. With the mast 73, the foil feels more direct and responsive, you feel the wave closer to your feet, and you have faster rail changes, ideal for prone in shallower spots.

Is the Foil Set Razor PRO 825-653-370 suitable for beginners?

It is designed for at least intermediate riders: the not-so-large surface area and fast character require a minimum of foil experience. For beginners, a foil with a larger, more buoyant wing is better (e.g., some Leviathan Easy-Riding models).

Can I also use it for wingfoiling?

Yes, especially for experienced riders for wave wingfoiling and downwind; if you are looking for an easy all-round wingfoil for cruising and first outings, a dedicated kit like Medusa or Leviathan Easy-Riding is preferable.

What is the purpose of the included Q02K system?

The Q02K titanium quick-release system allows you to assemble and disassemble the foil quickly while maintaining rigid and precise connections, ideal if you frequently transport the foil or change configurations between different masts (83/73).

What is the difference compared to the Razor PRO 775 or 675?

Compared to the 775, the 825 offers more lift and ease, with a slightly "easier" behavior on slower waves; compared to the 675, it is less extreme and more versatile, with a wider range of use between surf and downwind.