Zimmermann 34-21-2-282-304 Formula Z Rear Brake Disc

The Zimmermann 34-21-2-282-304 Formula Z is a high-performance two-piece brake disc engineered for demanding driving conditions and motorsport applications. This innovative brake rotor features a multi-piece construction that combines a gray cast iron friction ring with a lightweight aluminum hub, connected by floating steel pins that allow for independent thermal expansion.

Key Features:

• Two-piece floating design reduces unsprung weight by approximately 15% compared to conventional one-piece rotors
• Aluminum hub construction significantly improves vehicle handling and driving dynamics
• Floating mounting enables radial expansion under high temperatures, preventing thermal deformation and heat cracks
• High-carbon cast iron friction ring provides superior heat dissipation and consistent braking performance
• Optimized ventilation channel design prevents hot spots and reduces brake fade
• Engineered to OE specifications for direct bolt-on installation
• Inertia-dynamometer tested to guarantee superior quality

The Formula Z brake disc was specifically developed for spirited driving, performance vehicles, and motorsport use where extreme braking performance is required. The floating design allows the friction ring to expand freely under thermal stress, maintaining disc shape and preventing warping even under maximum load. This results in excellent deceleration with no distortion at high temperatures, making it the ideal choice for track use or high-performance street applications.