Delta R-Frame Mast BLEM

The Delta R-Frame Mast BLEM is a cosmetically blemished version of Delta Hydrofoils' R-Frame mast, offered at a reduced price while retaining full warranty coverage. Delta Hydrofoils, a brand known for its modular foil systems, designed the R-Frame around a single-piece carbon fiber construction that integrates the top plate, mast, and front fuselage section into one unified part. This consolidation eliminates the mast-to-plate and mast-to-fuselage joints found in traditional foil assemblies, resulting in a notably stiffer load path between the board and front wing. The BLEM units carry surface-level cosmetic scratches—typically near the fuselage base or around mounting holes—but are structurally identical to first-quality production masts.

• Length: 32" / 82 cm
• Chord: 11.5 cm
• Thickness: 1.8 cm
• Construction: One-piece carbon fiber (integrated top plate, mast, and front fuselage)
• Rear fuselage: Detachable (sold separately)
• Included hardware: Two M8 x 25 mm Torx screws
• Regular retail price: $999.00 USD
• BLEM price: $799.22 USD (approx. 20% off)

The R-Frame Mast suits intermediate to advanced foilers who prioritize structural rigidity and are comfortable with a modular, performance-oriented setup. Because the design eliminates two of the most flex-prone joints in a typical hydrofoil assembly, it appeals to riders seeking direct, responsive feedback from their front wing—particularly in wing foiling and prone foil surfing applications where subtle inputs matter.

At 82 cm, this mast length sits in a versatile middle range suitable for flatwater cruising and moderate-swell surf foiling. Riders who want to save on cost without sacrificing structural integrity will find the BLEM option practical, since the blemishes are cosmetic only and do not affect ride performance or warranty coverage.

The R-Frame Mast is a central component in Delta Hydrofoils' R-Frame system, which includes complete kits pairing the mast with Delta's High Aspect front wings (available in 700, 850, and 1050 cm² sizes) and various fuselage lengths. Delta offers a standard-length fuselage geared toward kite foiling and use with the 1500 Reflex wing, while a longer 770 fuselage is available for wing foiling and high-aspect surf foiling setups. The rear fuselage section connects to the integrated front fuselage and is swappable, so riders can adjust their setup without replacing the mast.

Compared to conventional two-piece mast-and-fuselage arrangements from brands like Axis or Armstrong, the R-Frame's integrated approach trades some modularity for stiffness. Riders already invested in the Delta ecosystem can pick up the BLEM mast as a cost-effective spare or entry point into the R-Frame platform, while those building a new setup can pair it with R-Frame-compatible wings and fuselages from Delta's current catalog.