







Baseplate Tendon Joint HD (U-Pin) V2
HD Baseplate: Built to Endure the Toughest Challenges
Designed for windsurfers who relentlessly push their gear to the limits, the HD Baseplate is engineered to withstand the most demanding conditions. Combining strength, durability, and convenience, it’s the ultimate choice for sailors who refuse to compromise.
Key Features
- Stainless-Steel Components: Creates an uninterrupted link from the T-nut to the extension, ensuring a strong connection even if plastic parts wear out.
- High-Quality TPU Tendon: Secured by large-diameter custom bolts for easy replacement without over-torquing.
- Stainless-Steel Molded U-Pin: A single solid piece ensures lasting durability and a secure, reliable connection.
- Push-Button Mechanism: Features two sliding pins that release the joint from the base, allowing you to keep it attached to your board for convenient transport and storage.
- POK Engineering Plastic: Tough and ergonomic, designed for easy handling even after intense sessions.
- EVA Padding: Provides excellent grip on the board for enhanced control.
- Spectra Safety Rope: Rated to withstand up to 650 kg of break load, offering added safety in extreme conditions.
Why Choose the HD Baseplate?
- Tendon Release Option: Easily separate the joint from the base for hassle-free storage and transport.
- Stainless-Steel Carriage Bolt and Tendon Cup: Maintains a solid connection even if plastic parts break.
- Large-Diameter Bolts: Prevent over-torquing and bolt stripping, ensuring long-lasting performance.
- Durable Construction: Built to handle the toughest challenges, from freeride to wave sailing.
Who is the HD Baseplate For?
- Freeride and Wave Sailors: Who need a durable and reliable baseplate for intense sessions.
- Adventurous Windsurfers: Who push their gear to the limits in challenging conditions.
- Practical Sailors: Who value convenience and ease of use without sacrificing performance.
Upgrade Your Rig with the HD Baseplate
Whether you’re carving waves or blasting across open water, the HD Baseplate delivers the strength and reliability you need to tackle the toughest challenges.
Built for the relentless. Choose HD—where durability meets performance.
- Baseplate Disconnection Safety: Dyneema Rope
- Baseplate Joint: Tendon
- Baseplate EVA Covered Disk: Yes
- Baseplate Locking Mechanism: U-Pin Push Button
- Baseplate U-Pin Construction: Fully Integrated
- Baseplate Tendon Outside Diameter: 20 mm
- Baseplate Disk Sliding Blocker: Yes
- Baseplate Height: 78 mm
- Board Connection Method: Single M8 Bolt + Nut
- Operating Weight: 0.308 kg
Regular inspection of your baseplate is crucial for safety and performance.
Here's what you need to check before hitting the water:
Power/Boge Joint Inspection:
- Check rubber for deterioration, cuts, or drying
- Look for splitting at top/bottom sections
- Test flexibility in all directions
Tendon Joint Inspection:
- Look for wear and cuts, especially around bolt holes
- Test flexibility gently
- Pay attention to bolt hole areas
Replacement Guidelines:
- Tendon joints: Replace annually or after 120 hours of use
- Power/Boge joints: Replace when showing wear or damage
- When replacing U-pins in Power/Boge joints, applying heat can help break down glue for easier removal
Remember: A quick pre-session check of your baseplate can prevent equipment failure and keep you safe on the water.
While others rely on standard parts, we took a different path: creating our own designs from the ground up. This isn't just about being different - it's about being better.
What does features 1 year unconditional + 1-year conditional warranty cover ?
At Unifiber, we're confident in the quality of our gear and stand behind everything we make.
Here's how our warranty works:
- First year: Your product is completely covered - simple as that. We've got your back so you can focus on enjoying your time on the water.
- Second year: We continue to support you against any manufacturing defects because we believe in building gear that lasts.
- To make things hassle-free, just keep your proof of purchase handy when you need us., we're confident in the quality of our gear and stand behind everything we make.


Windsurf Baseplate Knowledge
Our Baseplate Collection

Made to Mast
Our commitment to excellence shows in every baseplate we make.
From premium materials to precision-engineered joints, each component undergoes extensive testing to ensure flawless performance in demanding conditions.
Expert Advice
Windsurfing Baseplate FAQs
When it comes to windsurfing, the baseplate is often underestimated as just a simple connection point between the board and the rig.
The baseplate is a sophisticated component of your windsurfing setup, serving as the critical link in your entire system. It plays a vital role in power transmission, shock absorption, and responsiveness to sailing conditions.
Choosing the right baseplate can significantly impact your windsurfing performance, safety, and overall experience.
This FAQ aims to provide you with the necessary information to help you choose the perfect baseplate for your riding style and conditions.
There are three main types:
- Power/Boge Joint: Great shock absorbers with more sideways movement
- Tendon Joint: Stiffer with less lateral movement
- Cardan Joint: Easily pivoting, ideal for inflatable WindSups
Power Joint is an imitation of the original Boge Joint. The Boge Joint is slightly more expensive and has an unconfirmed reputation for longer lifespan, but both function similarly.
It depends on your use:
- For shock absorption: Power/Boge Joint
- For direct feel and less movement: Tendon Joint
- For inflatable WindSups: Cardan Joint
Unifiber RDM masts stay at a constant 33 mm. internal width up to 600 mm. into the base section. Beyond 600 mm. the internal width tapers to 32 mm.
Baseplate Fundamentals
What's the difference between a baseplate and a deck plate?
There is no difference - they are two names for the same part. We use the term baseplate for simplicity.
What are the main pin systems available for baseplates?
There are two main systems:
- U-Pin: The most commonly adopted standard, featuring ergonomic push-button or trigger mechanisms
- US-Push Pin (US-Cup): Widely used in America, requiring simultaneous pressing of two pins to disconnect
What are the advantages and disadvantages of each pin system?
- U-Pin advantages: More ergonomic operation, easier to connect/disconnect
- US-Push Pin advantages: Very robust system
- US-Push Pin disadvantages: Less ergonomic, more play between baseplate and extension
There is no difference - they are two names for the same part. We use the term baseplate for simplicity.
There are two main systems:
- U-Pin: The most commonly adopted standard, featuring ergonomic push-button or trigger mechanisms
- US-Push Pin (US-Cup): Widely used in America, requiring simultaneous pressing of two pins to disconnect
- U-Pin advantages: More ergonomic operation, easier to connect/disconnect
- US-Push Pin advantages: Very robust system
- US-Push Pin disadvantages: Less ergonomic, more play between baseplate and extension