Centric 121.34182 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for BMW and Mini Models

The Centric C-TEK Standard Disc Brake Rotor 121.34182 offers dependable braking performance for select BMW and Mini vehicles. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking response.

• Vented disc brake rotor with straight vane design for effective cooling
• Nominal thickness of 0.945 inches (24.000 mm) and discard thickness of 0.882 inches (22.400 mm)
• Overall height of 1.787 inches (45.400 mm) and outside diameter of 12.992 inches (330.000 mm)
• Floating disc mounting with 5 lug holes, 0.654 inch (16.600 mm) diameter each
• Center hole diameter of 2.638 inches (67.000 mm) and mounting bolt hole circle diameter of 4.409 inches (112.000 mm)
• Solid smooth surface type without ABS tone ring included
• Weight approximately 21.2 lbs (9.62 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is engineered to provide reliable, direct replacement rotors that meet or exceed OEM standards. This product line focuses on delivering consistent braking performance with precise fitment and durability. The 121.34182 rotor is part of this line, designed specifically for BMW and Mini models requiring vented rotors with floating disc mounting.

Technical Details and Compatibility

This disc brake rotor is compatible with various BMW and Mini models including the BMW 220i, 228i Gran Coupe, 228i xDrive Gran Coupe, M235i xDrive Gran Coupe, X1, X2, and the Mini Cooper Countryman. The rotor features a vented design with 40 straight vanes to optimize heat dissipation during braking. The floating disc mounting system helps reduce stress and improve rotor longevity. The smooth surface type ensures consistent pad contact and braking feel.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Eliminating noise and vibration from uneven rotor surfaces
• Improving heat dissipation to prevent brake fade in daily driving
• Ensuring proper fitment for BMW 220i and Mini Cooper Countryman brake systems

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets the nominal thickness of 0.945 inches (24.000 mm) and is above the discard thickness of 0.882 inches (22.400 mm). Clean the rotor surface to remove any protective coatings or contaminants before mounting. Verify the 5-lug hole pattern and center hole diameter of 2.638 inches (67.000 mm) match the vehicle hub. This rotor does not include bearings or ABS tone rings, so use existing components as applicable.

Quality Assurance and Warranty

Centric's C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards for fit, form, and function. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric's official documentation for complete warranty information.