Craftsmanship meets fine materials in our highest performing rotor to date
Fully Floating SG2F Two Piece Rotors/Discs
‘SG2F’ rotors that serve as a direct replacement for performance vehicles where 2-piece brake rotors are fitted as standard, e.g. Nissan GT-R (R35).
Where the vehicle has a 2-piece pin-drive brake rotor as original equipment, EBC’s SG2F 2-piece rotor upgrade seamlessly replaces the pin-drive rotor with a true fully-floating 2-piece rotor, whilst requiring no vehicle modifications.
SG2FC Two Piece Hub and Ring Solid Rotor Conversions
SG2FC 2-piece floating rotor conversions that upgrade OEM 1-piece cast iron rotors to performance 2-piece floating alternatives*, e.g. Ford Focus RS (mk3), Honda Civic Type R (FK8)SG2FK rotors that are included in EBC Brakes Racing’s Balanced Brake Kits™.
Note: * All ‘SG2FC’ 2-piece floating conversions will seamlessly replace the OEM 1-piece rotor and are designed to integrate with the OE caliper and pads with no vehicle modifications necessary.
Highest Of Quality
EBC Brakes Racing would like to emphasise that we put as much effort into development of our rotor metallurgy as what we put into development of our pad friction materials. The pad and rotor combined form the friction coupling; if either component is of poor quality then the outcome will likely be poor overall system performance. The best brake pad in the world used on a low-quality rotor with a bad metallurgy will result in merely average overall performance, since the pad will not be able to deposit the ‘transfer layer’ onto the brake disc that is critical to high brake system performance. For this reason, EBC Brakes Racing use only the highest quality disc alloy available.
The benefits of using a high-performance metallurgy are evident after testing EBC Brakes Racing’s 2-piece floating rotors against the recently introduced and extremely harsh ‘Reg 90’ dynamometer routine. The EBC 2-piece rotors completed two full test cycles back-to-back with zero disc cracking and no visible disc crazing. To put this into perspective, most OE discs show signs of cracking at stop 40 and then fail at 50% through just one R90 test, at stop 80 of 150. The quality of EBC’s metallurgy coupled with the fact that the disc is fully-floating in its design allows EBC’s 2-piece rotors to outperform most OE discs by a factor of over 4x in the ‘R90 Thermal Fatigue Test’.
On many modern vehicles the vanes rotate in the wrong direction on one side of the vehicle, resulting in a higher disc temperature that leads to a temperature imbalance left to right. Unlike many OEM’s who sacrifice performance in search of cost savings on tooling, EBC Brakes Racing have chosen to make our rotor rings handed for improved brake system performance. Furthermore, whilst it is almost impossible to determine differences in quality between two brake rotors by looking at the exterior machined surfaces, a quick look down the vanes is often revealing. Look down the vanes of an EBC Brakes Racing rotor ring and it will be immediately apparent how smooth the cast features are compared to most competitor rotors.
Improved Flow Velocity
That’s because EBC use a precision moulding resin sand to create our castings, resulting in a much smoother cast surface that is less restrictive for air flowing over the cooling vanes. A less turbulent flow means improved flow velocity. When thinking of the rotor ring as one large centrifugal pump, it’s easy to see how a higher flow velocity leads to improved disc cooling, allowing the disc to perform more efficiently as a heat exchanger. Quite simply, you can push an EBC Brakes Racing rotor ring harder for longer before it reaches a given operating temperature. This lower operating temperature extends the life of the brake rotor and reduces the onset of brake fade.
More That Just No Rust
The lack of rust mean that EBC Racing’s 2-piece discs continue to look great through your wheels for years to come, the elimination of corrosion around the drive bobbins also ensures that the brake rotor continues to float freely throughout its entire life on the vehicle, providing a robust and low-maintenance solution to rotor radial heat expansion. Often you will hear misinformed brake technicians stating that ‘floating rotors are for track use and should not be used on the public road’, however EBC’s innovative stainless-steel SD-Drive™ bobbins provide a solution that allows our 2-piece rotors to be used on the road without regular maintenance, even in countries where adverse weather and road gritting are commonplace.
Prevents Disc Rattle
Additionally, every bobbin location makes use of a spring clip that prevents disc rattle. This ensures the rotors are totally silent during operation and can be used on the public roads without the off-brake ‘rattle’ that plagues many other 2-piece floating rotors. SD-Drive™ bobbins operate on a ‘float in disc’ principle, meaning any wear resulting from regular expansion and contraction of the cast iron ring occurs in the slots in the cast iron ring itself, i.e. the component that becomes worn anyway after thousands of miles of braking. This allows the drive bobbins to be re-used for multiple outer friction rings, meaning only the outer ring needs to be replaced after a period of use, leading to significantly lower long-term running costs.
Made In The UK
EBC Brakes Racing proudly manufactures its 2-piece brake rotors and Apollo Series brake calipers in our Northampton, UK world headquarters. Our philosophy is that only when we manufacture every component in house do we have total control over the entire process from start to finish.