Power Box Fin M88 Superfast 31cm Select SML07510031

Power Box Fin M88 Superfast 31cm Select SML07510031

Description:

The Select M88 Superfast is a high-performance Power Box fin engineered for maximum speed and control on speed and slalom windsurf boards. Its core structure is built from high-modulus carbon to produce an ultra-thin foil profile (8.8% thickness), minimizing drag and allowing the fin to slice through the water with exceptional efficiency. Select's Active Flex concept balances a rigid trailing edge with a dynamic, twist-capable leading edge, producing a vertical lift effect that reduces hull wetted area and stabilizes the board at high speeds. This combination of stiffness and tuned flex delivers precise handling, predictable release and outstanding top-end performance. The fin is optimized for experienced sailors riding 85–145 L speed and slalom boards and is supplied in a Power Box configuration for straightforward mounting. Durable carbon construction ensures long-term stiffness retention and resistance to fatigue under high loads. For best results pair with Power Box-equipped speed/slalom boards and proper footstrap setups.

Key Features:

• High-modulus carbon construction for superior stiffness-to-weight ratio and durability
• Ultra-thin foil profile (8.8% thickness) to minimize drag and maximize speed
• Active Flex design: rigid trailing edge with a twist-capable leading edge for controlled vertical lift
• Reduces hull wetted surface for improved acceleration and top speed
• Optimized for speed and slalom boards in the 85–145 L range
• Power Box compatible for secure, standardised mounting
• Engineered for experienced sailors seeking high-speed stability and precise control
• Low-drag shape that performs across a range of sailing angles and conditions

Specifications:

Manufacturer: Select
SKU: SML07510031
Material: High-modulus carbon composite
Size/Dimensions: 31 cm length; ultra-thin foil profile — 8.8% thickness (8.8 mm per 10 cm chord)
Weight: Not specified by manufacturer
Color: Natural carbon finish (black)
Category: Fins
Age Group: Adults
Gender: Unisex

Recommended Use:

Ideal for advanced and professional windsurfers targeting speed and slalom disciplines. Best suited to Power Box-equipped speed and slalom boards sized roughly 85–145 liters and for sailing in flat to moderately choppy open-water conditions where high speeds are pursued. Pair with compatible footstraps and board setups; verify Power Box compatibility and consider professional installation for optimal alignment and performance.