Mast HD SDM C75 Constant FL Curve 400cm Unifiber UF006310400

Mast HD SDM C75 Constant FL Curve 400cm Unifiber UF006310400

Description:

The Unifiber HD SDM C75 Constant FL Curve 400cm mast is a high-performance windsurfing spar engineered to deliver a balanced blend of durability and responsiveness for demanding riders. Built with a C75 carbon composite layup and a heavy-duty (HD) construction, it offers increased stiffness where needed while retaining lively flex in the centre and a progressive flex-top for smooth handling. The Constant FL curve is a modern flex-top profile that provides a little more centre flex than a classic constant curve, improving depower and control in gusty conditions. Designed as SDM (Standard Diameter Middle), this mast is compatible with most SDM sails and fittings and is especially well suited to wavesailing, high-wind freeriding and amateur racing. Its construction resists fatigue and impact while preserving a precise bend profile, giving riders confident handling and consistent performance session after session. Ideal for sailors looking to step up their rig’s responsiveness without sacrificing durability.

Key Features:

• C75 carbon composite construction (approximately 75% carbon) for a high strength-to-weight ratio and responsive feel
• HD (heavy-duty) layup for improved durability and resistance to wear and impact
• Constant FL Curve — modern flex-top with additional centre flex for smoother depower and sail control
• SDM (Standard Diameter Middle) profile for broad sail compatibility and simple rigging
• Optimized bend profile for wavesailing, high-wind freeriding and amateur racing performance
• Balanced stiffness distribution for precise handling and predictable feedback in gusty conditions
• Consistent manufacturing tolerances for repeatable performance across rigs
• Compatible with standard SDM fittings and Unifiber mast sleeves; recommended to check mast selector for ideal curve match

Specifications:

• Manufacturer: Unifiber
• SKU: UF006310400
• Material: C75 carbon composite (heavy-duty layup)
• Curve Type: Constant FL Curve (flex-top with increased centre flex)
• SDM/DM: SDM (Standard Diameter Middle)
• Size/Dimensions: 400 cm length
• Weight: Not specified by manufacturer for this listing (refer to Unifiber specifications)
• Color: Carbon / black finish (standard carbon appearance)
• Size: 400
• Category: Masts
• Age Group: Adults
• Gender: Unisex

Recommended Use:

This mast is ideal for intermediate to advanced windsurfers — wavesailors, high-wind freeriders and amateur racers who require a robust yet responsive spar. Best suited to windy, wave and shore-break conditions where precise control, reliable depower and durability are priorities. Pair with SDM-compatible sails and standard SDM fittings; for optimal rig tuning consult Unifiber’s Mast Selector and mast measurement guides.