Zimmermann 100.3386.70 Formula Z Coat Z Perforated Two-Piece Vented Brake Disc

The Zimmermann 100.3386.70 is a Formula Z Coat Z two-piece perforated brake disc engineered for superior stopping performance under high mechanical and thermal loads. Part of Zimmermann's premium Formula Z lineup, this rotor is purpose-built for drivers who demand more from their braking system—whether on spirited road drives or demanding track sessions.

Key Features:

• Two-Piece Floating Design: The aluminum hub and high-carbon iron friction ring are joined via a floating mount, allowing radial thermal expansion under heavy braking loads to prevent distortion and reduce the risk of heat cracks.
• Perforated Disc Surface: Drilled perforations improve gas evacuation from the pad-to-disc interface, reducing brake fade and maintaining consistent pedal feel under sustained braking.
• Internally Vented Construction: Internal venting channels promote airflow through the rotor for efficient heat dissipation, helping to prevent fade and extend component life.
• Coat Z Anti-Corrosion Coating: The proprietary Coat Z finish protects all non-friction surfaces from rust and corrosion, delivering a clean, high-quality appearance right out of the box.
• High-Carbon Alloyed Iron: The friction ring is cast from a high-carbon alloy that improves thermal capacity, reduces noise, and enhances overall durability compared to standard gray iron rotors.
• Lightweight Aluminum Hub: The aluminum bell reduces unsprung and rotating mass for improved ride quality and more responsive braking dynamics.
• ECE R90 / ABE Certified: Meets European safety certification requirements—no separate type approval needed for road use.

Sold individually. If replacing both rotors on an axle, two units are required. Always replace brake pads at the same time as rotors to ensure optimal braking performance and even wear.