Graphene Pads: The Future of Cooler Brakes

For cyclists, few things are as critical as reliable braking performance. Whether you're descending a steep alpine pass or navigating busy urban streets, the ability to stop effectively and consistently is paramount. However, a silent enemy lurks within every braking system: heat. Excessive heat build-up can lead to a phenomenon known as brake fade, where your braking power diminishes precisely when you need it most. This not only compromises performance but also poses a significant safety risk. But what if there was a breakthrough technology capable of drastically reducing this heat, ensuring your brakes remain cool, powerful, and utterly dependable?

The Silent Enemy: Heat in Braking Systems

Braking generates immense friction, and friction, by its very nature, produces heat. In a bicycle disc brake system, this heat is primarily generated at the interface between the brake pad and the rotor. As braking continues, this heat rapidly propagates through the pads to the caliper, and eventually to the brake fluid itself. When temperatures soar, several critical issues arise. Firstly, the friction material of the pad can begin to degrade, leading to a loss of its intended friction coefficient and thus reduced stopping power – the dreaded brake fade. Secondly, prolonged exposure to extreme heat can cause damage to the caliper's internal seals, leading to fluid leaks or compromised hydraulic performance. Thirdly, the brake fluid itself can boil, forming vapour bubbles within the system, which makes the brake lever feel spongy and unresponsive, further reducing braking effectiveness.

Traditional brake pads, while functional, have inherent limitations in their ability to dissipate this intense heat efficiently. Many rely on materials that, while providing good friction, are not optimal for thermal management. This is where innovation becomes crucial, and absoluteBLACK has stepped forward with a revolutionary solution that promises to redefine expectations for disc brake performance.

Introducing AbsoluteBLACK GRAPHENpads: A Thermal Revolution

After three years of intensive development and rigorous testing, absoluteBLACK has unveiled their GRAPHENpads disc brake pads, a product designed from the ground up to tackle the challenge of heat build-up head-on. These pads represent a significant leap forward in braking technology, utilising an entirely new combination of advanced materials and intelligent design. The core of their innovation lies in the strategic incorporation of graphene, a material renowned for its extraordinary properties, particularly its exceptional thermal conductivity.

The GRAPHENpads feature a dual-pronged approach to heat management: graphene-coated and finned back plates work in conjunction with graphene-infused pad compounds. This synergistic design aims to dramatically reduce operating temperatures, thereby preventing brake fade and ensuring that the initial bite and power modulation remain consistent, even during the most demanding and prolonged descents. AbsoluteBLACK's research unequivocally identified heat build-up as the primary culprit behind diminished braking performance, and their new pads are engineered to directly counteract this fundamental issue.

The Science of Graphene: More Than Just a Material

Graphene, a single layer of carbon atoms arranged in a two-dimensional hexagonal lattice, possesses truly remarkable properties. It is one of the strongest materials known, yet incredibly lightweight, and critically for braking systems, it exhibits unparalleled thermal conductivity – far superior to traditional materials like copper. AbsoluteBLACK has cleverly harnessed these properties within their brake pads:

• Graphene-Infused Pad Compound: The pad compound itself incorporates a 'specially modified graphene'. This isn't just for show; this graphene formulation provides excellent friction characteristics and impressive durability. Crucially, it also acts as a highly efficient conduit, transferring heat away from the friction surface and into the backing plate much more effectively than conventional materials. Furthermore, these pads are entirely copper-free. This is a significant environmental benefit, as copper dust, a byproduct of braking, is known to be toxic to marine life and faces bans in certain regions, such as California, from 2025. An added bonus? The graphene compound contributes to a quieter braking experience.
• Graphene-Coated Finned Backplates: The steel backing plates of the GRAPHENpads are not only coated with graphene but also feature a patented angled cut on their integrated finned radiators. These fins are meticulously designed to maximise surface area and airflow, actively pulling heat up and away from the pad and caliper. The specific shapes and designs of these fins vary depending on the brake model, optimising their effectiveness for different systems. It's important to note that all versions, except for the Shimano Deore compatible pads, benefit from these advanced finned designs due to fitment constraints on the Deore model.

Why Cooling Fins Are Indispensable

While graphene's inherent thermal conductivity is phenomenal, the role of cooling fins on the backplate cannot be overstated. To fully grasp their importance, one must understand the most critical factor in cooling any braking component: airflow. As your bicycle moves, air flows past the brake caliper, rotor, and pads. This moving air acts as a natural cooling agent, drawing heat away from the hot surfaces. By increasing the surface area of the disc pad backplate through the clever use of fins, absoluteBLACK allows for significantly greater exposure to this cooling airflow.

The cooler the pads, the rotor, and the caliper remain, the better the overall braking performance. Thermal imaging studies clearly demonstrate that even the most advanced pad compounds will quickly overheat without adequate airflow. The fins, therefore, are not merely an aesthetic addition; they are a critical functional component that harnesses the power of moving air to dissipate the heat that graphene efficiently draws away from the pad's friction surface. This combined approach ensures comprehensive temperature management, leading to vastly improved and more consistent braking performance.

Unpacking the Performance: Lab & Real-World Testing

AbsoluteBLACK provided extensive testing data to substantiate their claims of superior performance. Their findings consistently highlight that maintaining pad temperatures below 400ºC is crucial for preserving braking power and modulation, effectively eliminating brake fade. Their new compound and design appear to achieve this with remarkable efficiency.

The Descending Test: A Rigorous Simulation

A cornerstone of absoluteBLACK's validation process was their unique 'Descending Test', performed on a one-of-a-kind machine over a 600-second (10-minute) duration. This test meticulously simulated a prolonged road bike descent, replicating conditions where brakes are heavily stressed. Key parameters included a constant 10N force on the brake lever, a 12.5% slope angle, and a velocity of 25km/h (approximately 15.5mph), with air blowing at the same speed across the braking system. Data was recorded at 0.1-second intervals, providing a staggering 6000 data points per test. The tests utilised Dura-Ace Icetech rotors.

This simulation effectively models a 100kg (220lbs) rider and bike gently dragging their brakes down a long descent – a common behaviour, particularly among less experienced riders in mountainous terrain. To ensure absolute consistency and fairness, each brake pad test used a brand new Dura-Ace rotor, a new 105 caliper, and fresh brake oil. These control measures are vital because, as absoluteBLACK points out, caliper seals can sustain permanent damage above 450ºC, and brake fluid can decompose. Furthermore, temperatures exceeding 500ºC can soften the aluminium core of the rotor, leading to permanent deformation of the braking surface.

Before each main test, a standardised bedding-in process was performed, consisting of 100 braking events in dry conditions, followed by 30 in wet, and then another 30 in dry, all at varying, pre-set intensities. The system was then allowed to cool completely to ambient temperature and dry out. The results speak volumes:

IMPORTANT NOTE: AbsoluteBLACK clarifies that their GRAPHENpads are a 'ceramic organic' compound. The Shimano and SwissStop pads used in the comparison are organic, while the Kogel pads are Sintered. Therefore, this was not an 'apples-to-apples' test in terms of compound type, and the results should be evaluated within this context. However, the data strongly suggests that GRAPHENpads significantly reduce disc pad and rotor temperature by up to 35% compared to competitors, and crucially, completely eliminate brake fading. Thermal imaging further confirmed the substantial reduction in brake caliper temperature, which directly translates to enhanced performance and extended lifespan for caliper seals and brake fluid.

Graphene: Lubricant or Friction Material? Clearing the Confusion

It's a common misconception that graphene, often highlighted for its super low friction properties in lubricants, would be counterproductive in a brake pad. However, understanding the composition of a typical organic friction compound clarifies this. Such compounds usually comprise five classes of components: a fibrous material (e.g., inorganic, organic, or metallic fibres like copper), a binder (typically a thermosetting polymer), fillers (soft ceramic powders), one or more lubricants/friction modifiers (like graphite or copper), and one or more abrasives (hard ceramic powders).

The binder, often a phenolic resin, holds everything together but inherently has a very high friction coefficient. Therefore, friction modifiers or lubricants are essential to reduce the overall friction coefficient to allow for controllable braking modulation. Copper, traditionally used, serves multiple roles: as a fibrous material, a lubricant, and a heat conductor to the backplate.

Graphene, in its modified form used by absoluteBLACK, is several times stronger than copper and conducts heat an astonishing 3-6 times better. While its inherent coefficient of friction can be orders of magnitude lower when used purely as a lubricant, absoluteBLACK has found the precise balance of graphene and other components to create a unique friction material. This innovative material not only harnesses graphene's superior heat conducting properties to rapidly transfer heat away but also acts as an advanced friction modifier that delivers extraordinary and predictable braking performance, all while being free of environmentally harmful copper.

Models, Compatibility, and Availability

The absoluteBLACK GRAPHENpads are offered in five distinct versions, catering to a range of popular braking systems. It's important to note that prices are quoted per wheel:

The Disc 34 and 35 models utilise a performance road compound, optimised for the specific demands of road cycling, including high-speed braking and long descents. The Disc 27, 31, and 15 models, on the other hand, feature an endurance mountain bike compound, built to withstand the rigorous and often unpredictable conditions of off-road riding. AbsoluteBLACK confirms that all pads will fit any caliper that uses a compatible pad size and shape. For example, SRAM AXS pads are designed to fit any of their current 2-piston road calipers across their RED, Force, and Rival groupsets. As mentioned earlier, the Deore-compatible pads (Disc 15) do not incorporate the cooling fins due to specific fitment constraints within the Deore caliper design.

Frequently Asked Questions About Graphene Brake Pads

What exactly is brake fade?

Brake fade is the reduction or complete loss of braking power due to excessive heat build-up. As components overheat, the friction material can degrade, the brake fluid can boil, and the overall system loses its ability to transfer braking force efficiently, leading to a spongy lever feel and diminished stopping capability.

Why is overheating so detrimental to my braking system?

Beyond the immediate loss of stopping power, extreme heat can cause permanent damage to your braking system. Caliper seals can degrade or melt, leading to fluid leaks. Brake fluid can boil, creating dangerous vapour bubbles. Rotors can warp or soften, compromising their structural integrity and braking surface. Keeping temperatures down extends the life and reliability of your entire brake system.

Are absoluteBLACK GRAPHENpads truly copper-free?

Yes, absolutely. A key innovation of the GRAPHENpads is their copper-free formulation. This not only avoids the environmental concerns associated with copper dust (which is toxic to marine life and facing bans) but also allows absoluteBLACK to utilise graphene's superior heat transfer capabilities without relying on traditional metallic components.

Will these pads make my brakes quieter?

The graphene-infused pad compound is noted for its quiet operation. While brake noise can stem from various factors (rotor contamination, caliper alignment, etc.), the material science behind GRAPHENpads is designed to minimise noise, contributing to a smoother, more pleasant braking experience.

How do GRAPHENpads compare in terms of longevity?

While direct longevity comparisons against all other pads aren't explicitly detailed, the 'endurance' compound for mountain biking suggests robust durability. Graphene's inherent strength and the enhanced heat management of the pads mean they are less likely to degrade under high temperatures, which often contributes to premature wear in conventional pads. This improved thermal stability should translate to a longer effective lifespan and more consistent performance over time.

The Road Ahead: A Cooler, More Controlled Ride

The introduction of absoluteBLACK GRAPHENpads marks a significant milestone in cycling brake technology. By ingeniously combining the unparalleled thermal conductivity of graphene with sophisticated finned backplate designs, they have engineered a solution that directly addresses the long-standing challenge of heat build-up and brake fade. For riders seeking to elevate their performance, enhance safety, and ensure consistent, powerful stopping capabilities on every ride, these graphene-infused pads offer a compelling and innovative upgrade. Say goodbye to the anxieties of overheating brakes and embrace the confidence that comes with a cooler, more controlled ride.

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