Conventional floating rotors rely on circular rivets that fight against thermal expansion, eventually distorting the rotor blade and causing brake pulsation or a spongy pedal. EBC Racing's SD-System replaces those circular buttons with square-sided drive rivets, eliminating that conflict entirely and keeping your 2006-2012 Mustang GT500 front rotor flat and true through every heat cycle.
Unrestricted thermal expansion. Under hard braking, a rotor blade expands and contracts both radially and across its bandwidth. Circular buttons restrict that inward radial movement, loading the rotor asymmetrically and bending it sideways. The square-sided SD button lets the blade move inward and outward without restraint, so the rotor remains geometrically perfect regardless of temperature or braking load.
Line contact instead of point contact. Every circular button transfers drive forces through a single point of contact. Over extended use, that point contact allows the rotor blade to develop slackness relative to the inner hub, which can escalate into rotor throw-out and severe vibration at speed. The square drive face transmits those same forces across a full line of contact, maintaining tight tolerances in the drive direction far longer and dramatically extending the service life of the assembly.
A service life measured in multiples, not miles. Because distortion failures and drive-direction slackness are the two primary reasons floating rotors fail prematurely, eliminating both failure modes means the disc ring should last five to ten times as long as a conventional floating rotor. The only conditions that should require replacement are impact damage or exceeding rotor wear limits after an exceptionally high mileage accumulation.
Direct-fit replacement for the GT500 floating hub. This is the left-hand front disc ring, sold as a replacement blade for the factory floating rotor assembly on 2006-2012 Mustang GT500 applications. It matches the factory 355mm diameter and 32mm width and pairs with the existing inner hub.
Product Benefits
- Square Drive SD-System: Square-sided rivets allow full inward and outward thermal expansion without rotor distortion.
- Eliminates Brake Pulsation: Rotor blade stays flat and true through repeated heat cycles, preventing the sideways distortion that causes pedal pulsation.
- Line-Contact Drive Transfer: Braking forces spread across the full face of the square button, reducing hub slackness and preventing rotor throw-out.
- Extended Service Life: Removes the two leading causes of premature floating rotor failure, with potential longevity five to ten times that of circular-button designs.
- Left-Hand Front Fitment: Engineered specifically for the front left position on 2006-2012 Mustang GT500 floating rotor assemblies.
- Replacement Disc Ring: Sold as the rotor blade only, designed to mate with the existing inner hub without replacing the full assembly.
About EBC Racing: EBC Brakes is a specialist brake component manufacturer producing rotors, pads, and brake kits for street performance, track, and motorsport applications. The EBC Racing division develops competition-grade hardware validated under the demands of circuit use, with the SD-System representing the company's engineering response to the thermal and mechanical shortcomings of conventional floating rotor designs.
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Trim | GT500 |
| Vehicle Fitment | 2008, 2010, 2009, 2011, 2012, 2006, 2007 |
