Raybestos 980491 Disc Brake Rotor - Front

Overview of Raybestos Specialty - Street Performance Rotor

The Raybestos Specialty - Street Performance disc brake rotor, part number 980491, is engineered for Audi S4 models requiring reliable braking performance. Designed with precision, this vented rotor supports consistent heat dissipation and durability for street driving conditions.

• Compatible with Audi S4 vehicles
• Vented disc brake rotor for improved cooling
• Nominal thickness: 1.181 inches (30.000 mm)
• Discard thickness: 1.102 inches (28.000 mm)
• Outside diameter: 13.575 inches (344.800 mm)
• Inside diameter: 8.307 inches (211.000 mm)
• Overall height: 1.819 inches (46.200 mm)
• Mounting bolt hole quantity: 5
• Center hole diameter: 2.677 inches (68.000 mm)
• Mounting bolt hole circle diameter: 4.409 inches (112.000 mm)
• Conventional rotor type with 5 stud/lug holes

Detailed Product Description

This Raybestos disc brake rotor (part number 980491) is specifically designed for the Audi S4, ensuring precise fitment and optimal braking performance. The rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade under street performance conditions. With a nominal thickness of 1.181 inches and a discard thickness of 1.102 inches, this rotor maintains structural integrity and safety throughout its service life. The 13.575-inch outside diameter and 8.307-inch inside diameter provide compatibility with the vehicle's braking system, while the 5 mounting bolt holes and 5 stud/lug holes ensure secure installation. The overall height of 1.819 inches supports proper caliper clearance and rotor alignment.

Specialty - Street Performance Product Line

The Raybestos Specialty - Street Performance line focuses on delivering rotors engineered for street-driven vehicles that demand consistent braking under varied conditions. This product line balances durability and performance, making it suitable for Audi S4 owners seeking reliable stopping power without compromising daily drivability. The rotors in this line are designed to meet or exceed OEM specifications, providing a dependable replacement option.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi S4
• Addresses brake fade caused by overheating during spirited street driving
• Resolves vibration or pulsation issues due to uneven rotor surfaces
• Improves braking consistency and pedal feel
• Restores proper rotor thickness to maintain braking safety

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.102 inches) before installation
• Clean mounting surfaces to prevent rotor runout
• Torque mounting bolts to manufacturer specifications
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Perform a proper bed-in procedure after installation for best results

Quality Assurance and Warranty

Raybestos rotors undergo rigorous quality control to meet industry standards and OEM requirements. The Specialty - Street Performance rotors are manufactured with high-grade materials and precision machining to ensure durability and consistent performance. Warranty details are provided by Raybestos and typically cover defects in material and workmanship under normal use conditions.