Dynamite Friction 631-91002R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-91002R) is engineered for reliable braking performance on Scion xA and xB models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Scion xA and xB vehicles
• Directional drilled and slotted surface for improved brake cooling
• Vented rotor design to reduce heat buildup
• Rust-resistant zinc silver hat finish
• Nominal thickness of 22 mm with a discard thickness of 20 mm
• Four bolt holes with a 100 mm bolt circle diameter
• Overall diameter of 255 mm and height of 43.3 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is constructed with a plain disc finish and a zinc silver coated hat to resist corrosion. The rotor’s vented design allows air to flow between the rotor surfaces, helping to dissipate heat generated during braking. The directional slotted and drilled surface improves water and debris evacuation, which can enhance braking consistency in various driving conditions. With a center hole diameter of 55 mm and stud/lug hole diameter of 14.5 mm, this rotor is designed to fit securely on Scion xA and xB models requiring a 4-bolt pattern with a 100 mm bolt circle diameter.

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver product line from Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and heat management. This line is designed to provide enhanced braking performance and durability, particularly for vehicles like the Scion xA and xB that benefit from improved rotor cooling and surface cleaning during braking.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking performance in wet or debris-prone environments
• Helps maintain consistent brake pad contact and bite
• Prevents rust and corrosion on rotor surfaces
• Restores proper rotor thickness for safe braking operation

Installation Notes and Tips

Ensure the rotor surface is clean and free of any contaminants before installation. Verify that the rotor thickness is within the nominal 22 mm specification and above the discard thickness of 20 mm. Use proper torque specifications for the 4-bolt mounting pattern with a 100 mm bolt circle diameter. It is recommended to inspect brake pads and hardware during rotor replacement to ensure optimal braking system performance.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor with corrosion-resistant coatings and precise machining to meet OEM standards. While specific warranty details are not provided, the product is designed to meet the durability and performance requirements for Scion xA and xB brake systems.