2-Piece & Duo Cast Brake Discs.

Perfectly designed for premium applications.

Brake Disc
Brake Disc

Lighter, Safer Braking.

The Apec Black range provides a solution to patented braking products without the extra weight. Each brake disc has been designed to seamlessly meet OE specifications and dimensions to ensure performance and prestige that’s both discreet in form and distinct in function.

Mass Matters.

By reducing total unsprung mass, Apec Black discs maximise performance and handling to ensure every installation enhances the driving experience for premium vehicle applications. With Apec Black, better braking means better materials, better manufacturing, and matching patented OE innovation with razor-sharp precision.

Our compound, bi-metallic discs meet the OE specifications including a 2.5mm thick pressed steel hub on Mercedes applications. This means a reduction in disc weight of up to 20% compared with a full cast product without sacrificing durability or safety. 

Brake Disc

Spec heavy.

Light on load.

Apec Black Discs

Brake Disc
Apec Black Disc

Due to the European CO2 regulation a manufacturer is required to ensure that the average emissions of all new cars it produces, and which are registered in the European Community, are at or below the permitted level of emissions for its vehicle type. This has shifted the automotive market in the era of 'light-weighting' and increased R&D development to focus on the below key drivers:

  • Weight reduction measures
  • Fuel economy and CO2 emissions
  • Enhanced vehicle performance and handling

Brake Disc

Heat Dissipation.

OE matching manufacturing practices and carefully selected materials mean Apec Black brake discs are designed to withstand and dissipate extreme temperatures caused by friction. Our two-piece designs conduct, store and disseminate heat, mitigating thermal stress and distortion to provide a smoother, more reliable drive.

Brake Disc

Manufactured for More.

We specialise in building braking components that address patented design innovations without compromise or complication. Apec Black products go above and beyond typical production practices to secure a level of quality that will provide a familiar feel that adheres to EU carbon regulations and industry-leading standards of R&D.

Our materials include corrosion-resistant aluminium, cast-iron and pressed steel moulded to key product specifications.

Brake Disc

Case Study
Mercedes Bonded Discs

The Mercedes Bonded Disc was first released in 2015 and installed in C-Class models at the point of manufacture. Much like OE bi-metallic discs of the time, it used two different metals to increase performance through a patented mechanical bonding process. Substituting the aluminium hubs used by their competitors with a pressed steel hub that was only 2.5mm thick, original aftermarket solutions were unable to properly emulate these critical dimensions with a full cast version due to the brittleness and resulting fractures that this would cause.

Although the ideal hub thickness for this particular size of disc is traditionally thought to be around 7mm, implementing such a large hub in this particular application would result in an overarching geometry change of 9mm, which would negatively impact handling and safety while also potentially stripping wheel bolt threads under lateral load. 

Likewise, ESP and ADAS systems might have been compromised by such large hubs, meaning that there were limited effective options for replacing the OE component. A fully cast version of the Mercedes patent would fall beneath OE dimensions, for example.

The Apec Black solution addresses this problem using similarly designed bi-metallic discs that match OE specifications and composition for Mercedes vehicle applications. These discs avoid patent infringement by using a special casting process that combines the pressed steel hub with the cast iron disc without the need for mechanical bonding. These implementations allow installers to meet sufficient standards of security and longevity with a product that possesses the same premium quality of the OE part with aftermarket availability.

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Mercedes Wheel