Brembo 09.B788.1S Sport TY3 Grooved Vented Rear Disc Brake Rotor

The Brembo 09.B788.1S is a Sport-line rear disc brake rotor engineered for drivers who demand enhanced stopping performance without sacrificing everyday driveability. Featuring Brembo's signature TY3 groove pattern machined directly into the braking surface, this rotor delivers improved pedal feel, greater braking grip, and increased fading resistance compared to a standard OE-equivalent disc.

Key Features:

• TY3 Sport Grooves: Proprietary groove geometry improves initial bite, pedal feedback, and resistance to brake fade during spirited driving
• High Carbon Cast Iron Construction: Minimizes noise and vibration while providing maximum thermal stability and enhanced driving comfort
• UV Anti-Corrosion Coating: Environmentally friendly, solvent-free UV protective coating covers the entire disc surface — including braking plates and outer edges — for superior corrosion resistance that exceeds OE standards
• Pillar Venting Technology (PVT): Internal ventilation design improves cooling capacity and increases disc strength by over 40% compared to conventional vane systems
• ECE-R90 Certified: Meets European type-approval standards, confirming safety and performance equivalence
• Direct OE Replacement: No modifications required for installation; drop-in fitment
• Includes Fixing Hardware: Supplied with all necessary fastening screws for a complete, worry-free installation
• Minimum Thickness Marking: Intelligent marking location on the disc provides immediate visual confirmation of discard thickness

Technical Specifications:

• Outside Diameter: 330 mm (12.99 in)
• Nominal Thickness: 22 mm
• Minimum/Discard Thickness: 20 mm
• Overall Height: 42 mm (1.65 in)
• Center Hole Diameter: 67 mm
• Number of Lug Holes: 5
• Disc Type: Internally Vented, TY3 Grooved
• Material: High Carbon Cast Iron
• Axle Position: Rear
• Sold as: Single disc

Cross-reference OEM part numbers: 1724230112 / A1724230112. The Brembo 09.B788.1S is manufactured in Italy and backed by Brembo's certified quality program, making it a trusted upgrade for performance-minded drivers seeking a Sport-level rotor with direct-fit convenience.