EBC Racing SG Slotted 2pc-Floating Conversion Brake Rotors (SG2FC2166)

EBC’s fully-floating SG2F brake rotors feature a lightweight hard-anodised aluminium hub, attached to a high-carbon G3500 friction ring via EBC’s patented SD-Drive stainless-steel bobbin system. Rotors are supplied fully assembled and sold in pairs. All rotors are manufactured and run-out tested in the UK. 

The fully-floating design allows the cast-iron outer friction ring to expand and contract freely by up to 3mm when subjected to the extreme heat generated during hard braking. The friction rings themselves feature 48 curved vanes and the rotors are handed left/right, exactly like you’ll find on a racing car. Curved cooling vanes possess a large surface area for effective heat dissipation, meanwhile, rotor cooling is further boosted by the curved vane geometry maximising the centrifugal pump effect. Combined, these innovations help to give the rotor extreme resistance to cracking, making EBC’s SG2F 2pc brake rotors an ideal choice for high-performance vehicles frequently driven hard on the road or track.

Multiple swept-back slots in the braking annulus strike an optimum balance between high bite during initial brake application and smooth braking action, with the curved profile helping to dampen vibration harmonics and lead to smooth and silent operation. The slots in the braking surface also improve pad cooling whilst allowing for the effective evacuation of gas and debris from the braking zone, helping to reduce the onset of brake fade.

Aluminium hats are machined from 6082-T6511 aerospace grade alloy making them incredibly resistant to heat distortion, where T6511 tempering means the alloy is heat-treated, stress relieved, and then artificially aged. This additional tempering process aligns the alloy’s grain structure and is indicative of the exquisite materials and attention to detail poured into creating the SG2F brake rotor range.

Although SG2F brake rotors feature all the technical innovations typically found in brake rotors designed for racing, each rotor makes use of anti-vibration spring clips that eliminate ‘off brake’ rattle meaning the rotors can also be safely and silently used on the road. Also, where many competitors use mild-steel bolts/bobbins to assemble their 2pc brake rotors, EBC SG2F rotors feature bobbins that are precision machined from stainless-steel bar, preventing unsightly corrosion and ensuring the outer friction ring continues to float freely even after years of exposure to the elements. These features mean SG2F brake rotors require no maintenance and are equally at home on the public road as they are on the racetrack.

SG2F rotors are sold either as a direct replacement for performance vehicles where 2-piece brake rotors are fitted as OE, or as a simple bolt-on 2pc floating conversion for vehicles where 1-piece cast iron rotors are standard fitment. No vehicle modifications are required for SG2F 2-pc rotor conversions.

Upgrading from a 1-pc rotor to an SG2F 2-pc rotor will shave crucial kilograms off a vehicle's un-sprung rotational mass, leading to sharper turn-in, improved tyre road holding, better fuel economy and an increase of BHP at the wheels. Best of all, when the cast iron friction ring becomes worn after a period of use, the outer friction ring alone can be replaced, allowing the aluminium hub and stainless bobbins to be reused, minimizing long-term running costs.

NOTE: On a selected but growing range of vehicles, matching ‘SG’ grooved 1pc rear rotors are available to complement ‘SG’ grooved 2pc front rotors.