EBC GD7640 GD Sport Slotted and Dimpled Brake Rotor Set

The EBC GD7640 is part of EBC's third-generation GD Sport series — a premium slotted and dimple-drilled brake rotor set engineered for performance-oriented street driving. Designed as a direct OEM replacement with significant upgrades over standard rotors, the GD7640 delivers improved cooling, consistent pad wear, and enhanced braking performance under demanding conditions.

Key Features:

• Wide-aperture cooling slots draw cool air beneath the brake pad and rotor interface, helping manage pad contact temperatures that can exceed 1,000°F under heavy braking — reducing brake fade and maintaining brake effectiveness
• Dimple-drilled design promotes brake pad outgassing without through-drilling the rotor, significantly reducing the risk of stress cracks compared to fully drilled rotors
• Full-sweep slots continuously sweep dirt, dust, water, and debris out of the braking zone and maintain a flat, parallel pad surface throughout the life of the pad set — eliminating the record-groove effect common with non-slotted rotors
• Thermic Black corrosion-resistant finish provides long-lasting protection against rust and corrosion on non-contact surfaces
• OEM-spec grey cast iron construction machined to tight tolerances for precise fitment and reliable performance
• 100% runout, metallurgy, and dimensional inspection on every rotor before release — all sport rotors are balanced and runout-inspected at EBC's UK or Las Vegas facility
• R90-approved blanks — GD Series rotors are 100% machined in the U.K. to meet rigorous international safety standards
• Sold as a set

The GD Sport series is ideal for fast street cars, performance sedans, hot hatches, trucks, and SUVs. Note: As with all slotted rotors, some increase in wind noise may be noticed during normal driving. Drivers who prefer quieter operation should consider EBC's USR Ultimax series instead.