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Meet our Flash C25 — the Lightest Disc Wheel on Earth

What does it feel like to ride the lightest full disc wheel ever created? Introducing our latest Flash C25 — a masterpiece of carbon engineering designed for triathletes and time trialists against the clock. At Light Bicycle, we’ve taken the aerodynamic excellence of our Precision line and shattered the weight barrier — all without sacrificing pro-level stiffness. Welcome to the 700g+ realm.

THE 700G-PLUS REVOLUTION: A NEW INDUSTRY BENCHMARK

As the lightest full disc wheel on earth, the all-new Flash C25 sets a new standard for competitive cycling at a mere 775 grams paired with LB Road Disc hub. This record-breaking weight reduction means instantaneous acceleration and effortless climbing, ensuring that every watt of your power is converted into podium-winning momentum. Whether you are sprinting out of a corner or hammering on a flat section, the Flash C25 delivers unmatched responsiveness that leaves the competition behind.

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25MM INTERNAL WIDTH: CLEAR PERFORMANCE BENEFITS

Unlike traditional TT disc wheels that stick to a 19mm to 23mm internal width, the Flash C25 goes wider with a 25mm internal width. This generous width, which is more commonly found on all-road and gravel wheelsets, brings massive real-world gains. The increased air volume allows for lower tire pressures, delivering a smoother ride with less rolling resistance. The seamless tire-to-rim profile optimizes aerodynamics with modern wide tires. Furthermore, the broader contact patch ensures superior cornering grip and stability.

pc-light-bicycle-flash-c25-disc-25mm-internal-width-clear-performance-benefits.jpeg pad-h-light-bicycle-flash-c25-disc-25mm-internal-width-clear-performance-benefits.jpeg pad-s-light-bicycle-flash-c25-disc-25mm-internal-width-clear-performance-benefits.jpeg mo-light-bicycle-flash-c25-disc-25mm-internal-width-clear-performance-benefits.jpeg

UNCOMPROMISED STIFFNESS: OPTIMIZED FOR THE MODERN RACERS

The Flash C25 features our patent-pending reinforcement technology and a specialized internal support structure, delivering monumental lateral stiffness for high-torque efforts, aggressive cornering, and explosive sprints. Having turned heads since its 2026 Eurobike debut, the Flash C25 has triumphantly cleared a battery of rigorous laboratory and real-world endurance tests. These achievements are more than just a performance benchmark; they represent our unwavering, time-honored commitment to absolute quality, ensuring that every ride on the Flash C25 is backed by unyielding reliability.

pc-light-bicycle-flash-c25-disc-uncompromised-stiffness-optimized-for-the-modern-racers.jpeg pad-h-light-bicycle-flash-c25-disc-uncompromised-stiffness-optimized-for-the-modern-racers.jpeg pad-s-light-bicycle-flash-c25-disc-uncompromised-stiffness-optimized-for-the-modern-racers.jpeg mo-light-bicycle-flash-c25-disc-uncompromised-stiffness-optimized-for-the-modern-racers

LASER-ETCHED CUSTOMIZATION: RIDE 12 MONTHS A YEAR

To match its revolutionary performance, the Flash C25 features default stunning laser-etched graphics — the exclusive Light Bicycle Constellation Map. Representing the 12 months of the year, it stands as a badge of honor for dedicated cyclists who chase their goals and keep riding all year round.

pc-light-bicycle-flash-c25-disc-laser-etched-customization-ride-12-months-a-year.jpeg pad-h-light-bicycle-flash-c25-disc-laser-etched-customization-ride-12-months-a-year.jpeg pad-s-light-bicycle-flash-c25-disc-laser-etched-customization-ride-12-months-a-year.jpeg mo-light-bicycle-flash-c25-disc-laser-etched-customization-ride-12-months-a-year

SPECS OVERVIEW

Model: Flash C25

Intended Use: Triathlon / Time Trial

Size: 700c

Tyre: Tubeless Capable

Inner/Outer Width: 25mm/30mm

Finish: Paintless

Brake System: Disc Brake

Weight (hub excluded): 610+/-25g

Recommended Tire Width: 28c-38c

MSRP: $1999 (with LB Road Disc hub)

Buy Now
build-your-anax-gravel-wheelset-now.png

Model: Flash C25

Intended Use: Triathlon / Time Trial

Size: 700c

Tyre: Tubeless Capable

Inner/Outer Width: 25mm/30mm

Finish: Paintless

Brake System: Disc Brake

Weight (hub excluded): 610+/-25g

Recommended Tire Width: 28c-38c

MSRP: $1999 (with LB Road Disc hub)

Build Now

Ready to rewrite your personal records with the world's lightest disc wheel? At just 775 grams, the Flash C25 is waiting to redefine your limits.

July 21st, 2026 | Light Bicycle

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