Dynamite Friction 830-31144L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31144L) 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 30 mm with discard thickness at 28.4 mm
• Five bolt holes with 16.4 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 332 mm and height of 62.3 mm

Detailed Product Features and Specifications

This Dynamite Friction rotor features a vented design that helps maintain optimal braking temperatures by allowing air to flow through the rotor. The surface is both drilled and slotted, which aids in removing brake dust, gases, and water from the contact area, improving braking consistency under demanding conditions. The rotor’s directional surface ensures proper rotation alignment for effective performance.

The rotor’s nominal thickness is 30 mm, with a discard thickness of 28.4 mm, indicating when replacement is necessary to maintain safety and performance. The rotor’s hat is finished in Geospec silver grey, providing additional corrosion resistance, complemented by a rust-resistant coating on the disc surface. The rotor measures 332 mm in outside diameter and 62.3 mm in height, designed specifically to fit BMW X5 and X6 vehicles with a 5-lug bolt pattern and 120 mm bolt circle diameter.

About the DFC Geoperformance Rotor - Drilled and Slotted Line

The DFC Geoperformance Rotor - Drilled and Slotted product line focuses on delivering rotors with enhanced heat dissipation and surface durability. The drilled and slotted design improves braking response and helps maintain rotor integrity under high-stress conditions. This line is suitable for drivers seeking reliable braking components tailored for specific vehicle applications such as the BMW X5 and X6.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive driving
• Improves braking performance in wet or dusty conditions
• Minimizes rotor surface glazing and brake pad deposits
• Prevents premature rotor corrosion and rust buildup
• Maintains consistent braking feel and pedal response

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation. Verify that the bolt hole pattern matches the BMW X5 or X6 specifications (5 bolts, 120 mm bolt circle diameter). Measure rotor thickness before installation to confirm it meets or exceeds the nominal thickness of 30 mm. Proper torque specifications should be followed when securing the rotor to avoid warping or uneven wear.

Quality Assurance and Warranty

Dynamite Friction rotors are manufactured to meet OEM standards for fitment and performance. The rust-resistant coating and Geospec silver grey hat finish contribute to long-term durability. Warranty details are provided by the manufacturer and should be reviewed prior to installation to ensure coverage.