HD RDM Aluminium Mast Extension (U-Pin) 30
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Unifiber HD RDM Aluminium Mast Extension U-Pin
The Unifiber HD RDM Aluminium Mast Extension U-Pin is an extension designed to offer maximum strength, structural rigidity, and reliability under load. It is a suitable choice for advanced windsurfers, wave riders, and high-performance riders looking for a solid and secure component even in the most demanding conditions.
The range is available in various lengths, including the 5-30 cm and 5-45 cm versions, to adapt to different trim needs. The T6 tempered aluminum structure, reinforced nylon base, stainless steel reinforcement at the connection point, and the U-Pin Push Button system make this extension a technical solution designed to withstand high loads and intensive use.
Main Features
- Mast extension for RDM masts.
- Available in multiple sizes, including 5-30 cm and 5-45 cm versions.
- Structure in T6 tempered aluminum.
- Reinforced nylon base.
- Stainless steel insert in the connection between tube and base.
- U-Pin Push Button attachment system.
- Collar Nylon + Stainless Steel Reinforced Ring + Pin.
- Downhaul system 6:1 with 2 pulleys.
- Pulley orientation designed for simple and intuitive rigging.
- Compatible with ropes 3.8 - 4.0 mm.
- Recommended rope: Pre-stretched Polyester 4.0 mm.
- Adjustment in steps of 25 mm.
- Base suitable for comfortable rigging even barefoot.
Product Advantages
Designed for high loads
The HD line is developed to withstand intense use and significant stresses. The rigid and reinforced construction offers greater safety and performance continuity when the rig is subjected to high tension.
Reinforced structure
The main tube in T6 tempered aluminum, the reinforced nylon base, and the stainless steel insert in the connection area contribute to creating a solid and durable extension. This configuration is designed for those looking for a reliable component even in difficult conditions.
Ideal for wave and high performance
This extension is suitable for advanced riders, racers, and wave sailors who require a component capable of withstanding high loads and heavy use. It is a solution oriented towards performance and resistance, rather than simple lightness.
Intuitive rigging
The orientation of the pulley and cleat system is designed to make rigging more direct and functional. This helps to manage the downhaul more practically even when working with challenging settings.
Technical Specifications
- Diameter: RDM
- Base compatibility: U-Pin
- Locking mechanism: U-Pin Push Button
- Collar: Nylon + Stainless Steel Reinforced Ring + Pin
- Construction: aluminum
- Reinforcement: aluminum
- Downhaul system: 6:1 - 2 pulleys
- Pulley diameter: 17 mm
- Pulley orientation: 0°
- Rope compatibility: 3.8 - 4.0 mm
- Rope: Pre-stretched Polyester 4.0 mm
- Adjustment step: 25 mm
- Outer tube diameter: 32 mm
- Wall thickness: 3 mm
- Finish: anodized
- Barefoot friendly rigging: yes
Available Versions
The extension is available in multiple extension variants to cover different setups and needs. Among the available sizes in the range are the more compact 5-30 cm, and the 5-45 cm, indicated for those who need a greater range of adjustment.
Ideal for
- Advanced windsurfers and high-performance riders.
- Wave riding and use in demanding conditions.
- Those seeking a rigid and resistant RDM extension under load.
- Those desiring greater structural reliability compared to an entry-level extension.
Q&A
Is this extension compatible with RDM masts?
Yes, this extension is designed for RDM masts.
What sizes are available?
The range includes several sizes, including the 5-30 cm and 5-45 cm versions.
What attachment system does it use?
This model uses a U-Pin Push Button system.
Is it suitable for intensive use?
Yes, the HD line is specifically designed to withstand high loads and more demanding use conditions compared to a standard extension.
What type of windsurfer is it recommended for?
It is recommended for advanced riders, wave riders, and performance-oriented windsurfers who are looking for a robust, rigid, and reliable extension.
Is the rigging system practical?
Yes, the orientation of the pulley/cleat system is designed to make the downhaul more intuitive and functional.
ZZZSURF Shipping and Delivery
Buy with peace of mind: with ZZSURF you get your windsurfing, wingfoil, kitesurfing and watersports products delivered directly to your doorstep, anywhere in the UK and most European countries.
Shipping Times
- Italy: Standard delivery in 24/48 business hours from shipment for most items in stock.
- Europe: delivery in 2-5 business days depending on the country of destination.
- For islands, remote areas or bulky items (boards, SUPs, foils, rigs, masts and booms) delivery time may vary by 1-2 business days.
Shipping Costs
- Italy: Free shipping on orders over $50. For lower orders, a shipping charge may apply.
- EU countries: Cost starts from €24.90 for orders under €200, the price however may vary depending on country and volume of products. The exact calculation is displayed during checkout.
- For bulky products (boards, sails, foils, SUPs, kayaks, etc.) a surcharge may be required. It will always be clearly communicated prior to order confirmation.
Shipping Methods
- We ship with specialized express couriers (GLS, BRT, DHL, UPS, SDA, etc.), selected according to product type and delivery area.
- All products are packed carefully and, where necessary, with reinforced packaging to ensure maximum safety during transport.
- You will receive tracking via email/SMS as soon as the shipment leaves our warehouse.
Pickup at Headquarters
- You can pick up your orders for free at our ZZSURF warehouse in Gallarate Via Mameli 48 (VA) Italy - Please note this is not a store but a pickup point where orders already placed on the site can be picked up.
- You will be notified as soon as your order is ready for pickup.
Important Notes
- Always check the integrity of packages upon delivery and sign with reserve in case of damaged packaging.
- For any doubt or urgency, you can contact our customer service: info@zzsurf.com or WhatsApp directly from the website
- We also ship to Switzerland and UK: contact us for a customized quote.
Methods of Payment on ZZSURF
On ZZSURF, operated by Twoside srl, you can choose from several payment methods, all of which are secure and designed to provide you with maximum convenience:
Credit Cards:
Major credit and prepaid cards are accepted, including Visa, Mastercard and American Express. This method allows you to complete your purchases quickly and securely.
Klarna:
With Klarna you have the option to purchase now and pay off the amount later, choosing from various installment options as needed. A credit card is required to complete payment through Klarna. The maximum amount allowed, including shipping costs, is €1,500.
PayPal:
Paying with PayPal will allow you to make secure and fast transactions without having to re-enter your card information each time. In addition, in some situations, PayPal allows you to split the payment into convenient installments directly from your account.
Bank Transfer:
If you prefer, you can also pay by bank transfer. You will receive all the necessary details when you place your order. Shipment will be made only after verification of receipt of payment.
After placing your order you will need to make the transfer payable to : Twoside srl , IBAN IT74M0326850240052341838010 indicating the order number
Security of Transactions
All payments on ZZSURF are secured using SSL (Secure Socket Layer) technology, which protects your credit card information. During order completion, 3D Secure verification is also activated, which adds an additional layer of security by requiring additional confirmation via web, app or SMS. These measures allow you to shop with confidence.