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Load image into Gallery viewer, Full Speed Ahead K-Force SB25 Di2 Seatpost - 27.2 x 350mm, Black
Load image into Gallery viewer, Full Speed Ahead K-Force SB25 Di2 Seatpost - 27.2 x 350mm, Black

SKU: STPS0301

Full Speed Ahead K-Force SB25 Di2 Seatpost - 27.2 x 350mm, Black

Regular price $194.13
$216.20 Sale price $194.13 Regular price
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Description
Specifications

Enhance your road bike's performance with the Full Speed Ahead K-Force SB25 Di2 Seatpost - the ultimate choice for serious cyclists seeking lightweight durability, precise adjustability, and sleek style. Crafted from high-grade carbon fiber, this 27.2mm diameter seatpost combines innovative engineering and premium materials to deliver optimal power transfer and ride comfort on every climb, sprint, or gravel ride.

Materials & Construction:

Manufactured from a one-piece continuous UD carbon fiber, the K-Force SB25 offers exceptional strength-to-weight ratio, ensuring durability and reduced flex under load. Its UD (unidirectional) carbon finish provides a sophisticated matte look while enhancing structural integrity.

Performance & Engineering:

Designed specifically for electronic shifting systems, this seatpost features a removable mounting hardware compatible with FSA WE or Di2 batteries, facilitating seamless integration with your Shimano Di2 or FSA electronic drivetrain. The forged alloy Minimal Top Clamp (MTC) reduces weight and turbulence, providing a clean aesthetic and secure saddle mounting with standard rails.

Components & Technology:

The precision-engineered clamp style ensures a stable, slip-free saddle fit, while the 25mm offset offers optimal positioning for rider comfort and aerodynamics. Weighing just 197 grams, this lightweight seatpost elevates your bike's overall performance without sacrificing strength.

Style & Use Case:

With its sleek black UD carbon finish, the K-Force SB25 complements high-end road bikes, gravel bikes, and endurance bikes alike. Its minimalistic design paired with advanced material technology makes it ideal for competitive racing, serious training, or long-distance endurance cycling.

Key Features:

- One-piece continuous UD carbon fiber construction for maximum strength and lightweight performance

- Removable hardware compatible with FSA WE and Di2 battery systems for streamlined electronic shifting setup

- Forged alloy Minimal Top Clamp (MTC) for secure saddle attachment and reduced weight

- 27.2mm diameter, 350mm length, and 25mm offset suitable for a range of road and gravel bike applications

- Sleek black finish with modern aesthetic, optimized for performance-oriented cycling

Upgrade your bike's cockpit with the FSA K-Force SB25 Di2 Seatpost - engineered for cyclists who demand precision, reliability, and efficiency in every ride.

  • High-strength, one-piece continuous carbon fiber construction for optimal durability and lightweight performance, ensuring a rigid and reliable connection between saddle and seatpost.
  • Engineered with advanced UD carbon finish for enhanced aesthetic appeal and corrosion resistance, providing a sleek, professional look on high-performance road and mountain bikes.
  • Features a forged alloy Minimal Top Clamp (MTC) with removable hardware designed specifically for FSA WE or Di2 battery integration, enabling seamless electronic shifting system compatibility.
  • Optimized for both style and functionality, this 27.2mm diameter seatpost offers a 350mm length with a 25mm offset, ideal for achieving precise saddle positioning and a comfortable riding posture.
  • Innovative design combines lightweight engineering-total weight just 197 grams-with easy installation and adjustment, making it perfect for serious cyclists seeking summer durability, performance, and sleek aesthetics.
Length350
ColorBlack
Weight197
Diameter27.2
MaterialCarbon
Defined ColorBlack
Clamp StyleStandard Rails
Offset (mm)25
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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

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Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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Customer Reviews

Based on 1 review
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C
Colin Manley
Great Experience

Great pricing, easy transaction and the items shipped and arrived quickly.