About The Product
- One piece continuous carbon fiber construction
- Forged alloy Minimal Top Clamp (MTC)
- Fit 7mm standard rails and 7x9mm oval rails
- Integrated plastic insert sleeve for Di2 Batteries
- Available with 0 or 25mm setback
Upgrade your cycling performance with the Full Speed Ahead K-Force Light Di2 Compatible 31.6mm 400mm Carbon Seatpost - the perfect blend of advanced materials, innovative engineering, and sleek style designed for serious cyclists. Crafted for precision and durability, this high-performance seatpost offers enhanced comfort, optimal fit, and superior weight savings, making it an essential component for road cycling, racing, and gravel adventures.
Materials & Construction
Built from a one-piece continuous carbon fiber core, the K-Force Light Seatpost delivers exceptional stiffness-to-weight ratio, vibration damping, and durability. Its UD (Ultimate Design) carbon finish not only provides a sleek, professional appearance but also boosts aerodynamics and resistance to environmental wear. The forged alloy Minimal Top Clamp (MTC) ensures a secure saddle connection while maintaining lightweight performance.
Performance & Engineering
Designed for optimized rider positioning, the seatpost features an increased setback of either 0 or 25mm - ideal for achieving the perfect saddle fit and improving power transfer. With a weight of just 188 grams (for 27.2 x 350mm size), this lightweight design enhances climbing efficiency and acceleration without sacrificing strength or ride quality.
Components & Technology
Equipped with an integrated plastic insert sleeve compatible with Di2 battery units, the K-Force Light seamlessly supports electronic shifting setups, enhancing gear reliability and reducing cable clutter. Its compatibility with 7mm standard rails and 7x9mm oval rails ensures versatile saddle options. The seatpost's precise dimensions include options from 350mm to 400mm lengths, tailored to your riding style and bike frame.
Style & Use Case
Featuring a modern UD carbon finish with optional color graphics in black, this seatpost complements high-end road, triathlon, or gravel bikes. Whether you're aiming for top-tier racing performance, aerodynamic efficiency, or a sleek aesthetic, the K-Force Light is designed for elite cyclists seeking a lightweight, reliable, and customizable saddle support.
Key Features:
- One-piece continuous carbon fiber construction for maximum strength-to-weight ratio
- Forged alloy Minimal Top Clamp (MTC) for secure saddle attachment and easy adjustments
- Integrated plastic insert sleeve for Di2 compatible battery placement
- Available with 0 or 25mm setback to optimize riding position
- Compatibility with 7mm standard rails and 7x9mm oval rails
- Sleek UD carbon finish with optional black graphic design
- Ultra-lightweight at just 188 grams (27.2 x 350mm)
Performance-Driven Design for Serious Cyclists
Elevate your cycling setup with the Full Speed Ahead K-Force Light Di2 Compatible Carbon Seatpost - engineered for lightweight performance, durability, and tailored ergonomics. Perfect for competitive racing, endurance rides, or enthusiast cycling, this premium component enhances your bike's overall efficiency and sleek aesthetic. Available now for serious cyclists seeking top-tier quality and cutting-edge technology.
- Lightweight and durable, the Full Speed Ahead K-Force Light Di2 Compatible Carbon Seatpost is crafted from one-piece continuous carbon fiber for optimal strength-to-weight ratio and stiffness.
- Engineered for precise performance, this seatpost features an increased setback and minimal top clamp (MTC) design to ensure a perfect fit, enhanced saddle support, and improved bike handling.
- Built with high-quality M5 chromoly and stainless steel hardware, the seatpost provides reliable, secure clamping while maintaining lightweight performance ideal for competitive cycling and endurance riding.
- Designed for versatility, it accommodates 7mm standard rails and 7x9mm oval rails, with options for 0mm or 25mm setback, offering customizable positioning for rider comfort and aerodynamics.
- Featuring an integrated plastic insert sleeve for seamless Di2 battery integration, this carbon fiber seatpost combines innovative engineering, sleek UD carbon finish, and style-rich graphics for a modern, performance-oriented look.
| Specification | Value |
|---|---|
| Manufacturer | FULL SPEED AHEAD |
| Manufacturer Part No. | 192-0073029030 |
| Universal Product Code | 840031066114 |
| Invoice Description | SEATPOST FSA KFORCE LIGHT 31.6 400mm SB-25 f/Di2 w/PLASTIC SLEEVE |
| Shipping Weight | 1.35 lbs. |
| Package Dimensions | 18 x 3 x 4 |
| Country of Origin | TAIWAN |
| Description | Di2 Compatible |
| Outer Diameter | 31.6mm |
| Length | 400mm |
| Color | Carbon |
| Material | Carbon |
| Setback | 25mm |
- Supplier:
- JBI
Bike Junkies offers no‑hassle returns and exchanges within 60 days of delivery. We want every customer to feel confident when shopping with us, and our return process is designed to be simple, fair, and fast.
Return Eligibility
To qualify for a return or exchange, the following conditions must be met:
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The item must be in new, unused, and uninstalled condition.
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All original packaging, tags, hardware, and accessories must be included and intact.
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Items showing wear, installation marks, damage, or improper use cannot be accepted.
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An order number is required.
Once your return is received at our warehouse, a refund will be issued within 5 days after inspection.
Refunds
Refunds are issued to the original form of payment once the returned item has been received and approved. If we are unable to refund to the original payment method, the refund will be issued as store credit.
Depending on your bank or credit card provider, it may take an additional 2–3 business days for the refund to appear in your account.
Exchanges
To make an exchange, simply complete the return process and then place a new order for the item you want instead. This ensures the replacement item is reserved and ships quickly.
How to Start a Return
To request a Return Authorization (RA#), contact us at support@bikejunkies.com. Please include your order number and the item you wish to return.
Once approved:
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You will receive a Return Authorization email with instructions.
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Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
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Ship the item back within 7 days of the RA being issued as RA #'s are only valid for 7 days.
Please do not tape anything to the original product packaging. Place the item inside a proper shipping box. Using the manufacturer’s box as the shipping container will result in damage and the return may be rejected.
Be sure to keep your return tracking number. Powersport Junkies is not responsible for lost return shipments. You will receive a confirmation email once your return has been processed and refunded.
Defective, Incorrect, or Damaged Items
If you receive a defective, damaged, or incorrectly shipped item, contact us immediately. We will cover the return shipping cost and ensure the issue is resolved quickly.
Non‑Returnable Items
Certain items cannot be returned, including:
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Electronics with opened packaging or broken manufacturer seals
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Any part that has been installed or shows installation attempts
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Tools or chemicals that have been opened or unsealed
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Open‑box items with destroyed or missing packaging
Our Info
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Storefront name: Bike Junkies
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Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
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Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
This Shipping Policy explains how orders are processed, handled, and delivered by Bike Junkies, including delivery timelines, shipping coverage, and special conditions for military addresses. It is designed to give customers a clear understanding of what to expect when placing an order.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Order Processing and Handling
Orders are processed quickly to ensure fast delivery. Our standard handling time is 0–1 business days. Order cutoff time is 12 PM PST Monday-Friday and orders placed after that will be shipped shipped next business day.
Transit Times
Once shipped, orders typically arrive within 2–3 business days. Transit times may vary slightly depending on the destination, weather conditions, or carrier-related delays. Delivery estimates apply only after the order has left our facility.
Delivery Schedule
Standard delivery occurs Monday through Friday. Saturday delivery may be available.
Shipping Coverage
Bike Junkies offers free shipping to the lower 48 states of the United States. We do not ship to the following locations:
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Alaska
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Hawaii
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Puerto Rico
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Any international destination outside the United States
Orders placed with shipping addresses in restricted locations will be canceled and refunded.
Military Shipping (APO/FPO)
Bike Junkies ships to APO/FPO military addresses using USPS only.
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We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
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Transit times to APO/FPO locations may vary significantly depending on military mail processing.
Address Accuracy and Delivery Issues
Customers are responsible for ensuring that all shipping information provided at checkout is accurate and complete. Bike Junkies is not responsible for delays, lost packages, or delivery failures caused by incorrect or incomplete addresses. If a package is returned due to an address error, additional shipping charges may apply to resend the order.
Lost, Delayed, or Damaged Shipments
If a shipment is delayed, lost, or arrives damaged, customers should contact us promptly so we can assist with initiating a claim or resolving the issue with the carrier. While we support the process, final decisions regarding claims are made by the carrier.
Tracking Information
A tracking number is provided via email once the shipping label has been created. Tracking updates may take up to 24 hours to appear after the label is generated.
Shipping Restrictions
Certain items may be subject to shipping restrictions due to size, weight, or hazardous material regulations. If an order cannot be shipped due to such restrictions, we will notify the customer to arrange an alternative solution.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
For warranty issues please contact us at support@bikejunkies.com. Each Brand is different and we can provide instruction to complete warranty issues.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
