Overfast Carbon Fibre Thru Axles

Redefining What's Possible.

Carbon fibre transformed handlebars, wheels, seatposts and frames. Yet one of the bike's most important structural components remained largely unchanged.

Overfast asked a simple question: why not the thru axle?

The answer wasn't because carbon fibre couldn't be used—it was because nobody had successfully overcome the engineering challenges of combining ultra-low weight with the strength, durability and long-term reliability demanded by modern road bikes.

After more than two years of research and development, Overfast introduced a completely new approach. The result is an ultra-light carbon fibre thru axle that combines advanced composite engineering with innovative mechanical locking technology to deliver exceptional performance without compromising rider confidence.

The latest 2026 version introduces a precision-machined titanium insert within the 6mm hex interface, improving installation durability and helping prevent the hex socket from rounding during repeated installation and removal. It's another example of Overfast's commitment to refining every detail in pursuit of uncompromising performance.

Key Features

• New for 2026

• Precision-machined titanium 6mm hex insert for increased durability

• Helps prevent hex socket rounding during repeated installation

• Ultra-light carbon fibre construction

• One-piece moulded carbon fibre axle cap

• Patent-pending MagicLock™ Physical Bonding Technology

• Precision-machined 7075 aluminium threaded interface

• Double Groove Anti-Twist design

• Up to 60% lighter than conventional aluminium thru axles

• Front axle weights from just 13.8g

• Complete axle sets from approximately 30g (model dependent)

• Tested beyond industry standards

• Handmade and individually inspected before leaving the factory

Why Carbon Fibre?

Replacing aluminium with carbon fibre isn't simply about reducing weight.

Carbon fibre allows material to be placed exactly where it's needed, producing an axle that's exceptionally light while maintaining the stiffness required for accurate wheel location and confident handling.

By rethinking the entire design rather than simply changing the material, Overfast has removed unnecessary weight from one of the most overlooked components on the bike.

One-Piece Carbon Construction

Conventional lightweight aluminium thru axles often rely on making every section thinner to save weight, including the axle head itself.

Overfast takes a different approach.

The one-piece moulded carbon fibre axle cap combines exceptional strength with controlled elasticity, allowing it to withstand repeated tightening loads without the fatigue associated with thin aluminium components.

The result is a lighter axle designed for long-term reliability.

MagicLock™ Physical Bonding Technology

One of the biggest challenges with carbon fibre thru axles is securely joining carbon fibre to metal.

Rather than relying solely on adhesive bonding, Overfast developed its patented MagicLock™ Physical Bonding Technology.

A precision-machined 7075 aluminium threaded insert incorporates an internal mechanical locking structure that physically interlocks with the expanding carbon fibre shaft before being permanently bonded with high-strength adhesive.

Even without adhesive, the mechanical interface withstands loads of up to 500kgf. Combined with structural bonding, testing has demonstrated tensile strength of up to 900kgf, providing an exceptional margin of safety for real-world riding.

Double Groove Anti-Twist Design

Carbon fibre performs exceptionally well under tension, but resisting torsional loads requires careful engineering.

Overfast's Double Groove Anti-Twist design uses matching internal and external locking profiles to prevent the aluminium threaded insert from rotating independently of the carbon axle.

The result is a secure connection capable of withstanding repeated installation, removal and tightening without compromising structural integrity.

The new 2026 titanium hex insert further enhances long-term durability by reinforcing the tool interface, ensuring consistent engagement with a 6mm hex key even after repeated wheel changes.

Engineered for Confidence

Reducing weight should never come at the expense of reliability.

Every Overfast Carbon Fibre Thru Axle undergoes extensive laboratory and real-world testing before reaching production, including:

• EN fatigue testing

• UCI impact testing

• Maximum torque testing to 19Nm

• Tensile testing up to 950kgf

• X-ray inspection

• Lateral compression testing

• Carbon cap impact and fatigue testing

• More than one year of real-world athlete testing

Every axle is handmade, individually inspected and built with the same objective: delivering uncompromising performance without compromise.

Technical Highlights

• Carbon fibre axle shaft

• One-piece moulded carbon fibre cap

• Precision-machined 7075 aluminium threaded interface

• Titanium-reinforced 6mm hex insert (2026 Version)

• MagicLock™ Physical Bonding Technology

• Double Groove Anti-Twist construction

• Handmade construction

• Front axle weights from 13.8g

• Complete axle sets from approximately 30g (model dependent)

Why We Stock It

At Off The Front we're constantly searching for brands that challenge conventional thinking rather than simply refining existing products.

Overfast has done exactly that.

Rather than accepting the limitations of traditional aluminium or titanium thru axles, Overfast invested years of engineering into solving the challenges that prevented carbon fibre from becoming a viable alternative. The latest 2026 version continues that philosophy, introducing a titanium-reinforced tool interface that improves durability while retaining the exceptional low weight that has made the Overfast Carbon Fibre Thru Axle one of the most innovative upgrades available.

For riders building an uncompromising performance bike, it's exactly the kind of product that belongs at Off The Front.

Developed for Performance

Every gram matters, but reliability matters more.

That's why every Overfast Carbon Fibre Thru Axle is engineered, tested and refined to deliver exceptional performance in the demanding conditions of real-world riding. It's a product created for cyclists who appreciate engineering just as much as outright speed.