Dynamite Friction 830-31143L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31143L) is engineered for BMW X5 and X6 models. This vented disc brake rotor combines drilled and slotted surface features with a rust-resistant coating to enhance braking performance and durability.

• Compatible with BMW X5 and X6 models
• Directional drilled and slotted surface for improved heat dissipation
• Vented rotor design to reduce brake fade
• Rust-resistant coating for extended rotor life
• Geospec silver grey hat finish for corrosion protection
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• 320 mm outside diameter and 78.8 mm overall height
• 5 bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter

Detailed Product Description

The DFC Geoperformance Rotor - Drilled and Slotted by Dynamite Friction is designed specifically for BMW X5 and X6 vehicles, ensuring precise fitment and reliable braking performance. The rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade under demanding conditions. The directional surface is both drilled and slotted, which aids in removing brake dust, gases, and water from the rotor surface, maintaining consistent pad contact and improving overall braking response.

Constructed with a plain disc finish and a Geospec silver grey hat finish, this rotor offers corrosion resistance to protect against rust and extend service life. The rotor’s dimensions include a 320 mm outside diameter and an overall height of 78.8 mm, with a nominal thickness of 20 mm and a discard thickness of 18.4 mm, ensuring it meets OEM specifications for durability and performance. The 5-bolt hole pattern with a 120 mm bolt circle diameter matches the BMW X5 and X6 hub assemblies for straightforward installation.

Applications and Problem Solving

• Replacement for worn or warped rotors on BMW X5 and X6
• Improves braking performance in wet or dusty conditions
• Reduces brake fade during heavy or repeated braking
• Prevents rust and corrosion on brake components
• Maintains consistent brake pad contact and reduces noise

Installation Notes and Tips

Ensure the rotor is installed on compatible BMW X5 or X6 models matching the 5-lug, 120 mm bolt circle pattern. Verify rotor thickness before installation; replace if below the discard thickness of 18.4 mm. Clean the rotor surface to remove any protective coatings or debris before mounting. Proper torque specifications should be followed for lug nuts to avoid rotor warping.

Quality Assurance

Dynamite Friction manufactures the DFC Geoperformance Rotor - Drilled and Slotted to meet or exceed OEM standards for fit, form, and function. The rotor includes a rust-resistant coating and a durable Geospec silver grey hat finish to enhance longevity. Warranty information is available through the manufacturer or authorized distributors.