The 034 Motorsport 2-Piece Floating Rear Brake Rotor Upgrade Kit is specifically designed for the Audi RS4 and RS5 B9/B9.5 . This kit offers a complete replacement for the original 330mmx22mm brake rotors and works perfectly with the stock rear brake calipers of the RS models. Weighing only 12.1 lbs (approximately 5.5 kg) per rotor, this upgrade reduces rotational weight by 1.7 lbs per corner compared to the original 13.8 lbs rotors. This provides improved suspension response and increased braking performance without sacrificing the thermal mass required to effectively manage and dissipate heat. The rotor features a center cap made of 6061-T6 aircraft-grade aluminum for lighter weight and high strength. The brake disc itself is manufactured from a specially developed metal alloy that can withstand extremely high temperatures, significantly improving the rotor’s performance and durability during both everyday use and intense track days. The 72 directionally curved fins efficiently guide air through the rotor, dissipating heat quickly and evenly, keeping braking performance consistent even under heavy loads. The J-Slot grooves clean the brake pads and evacuate hot gases, further optimizing braking performance and reducing noise compared to traditional slotted rotors. The floating mounting system with strong steel bobbins allows for safe expansion and contraction of the rotor under high temperatures, reducing distortion and extending its service life. Replaceable rotor rings reduce long-term maintenance costs, making this kit an excellent investment for any Audi RS4 or RS5 B9/B9.5 owner seeking advanced braking performance and reliable heat dissipation.
Benefits:
• Lightweight construction (12.1 lbs vs. 13.8 lbs OE rotor)
• 2-piece floating design for optimal performance
• Aircraft-grade 6061-T6 aluminum hat
• J-Slotted friction surface for reduced brake noise
• 72 curved fins for improved heat dissipation
• Replaceable rotor rings for lower maintenance costs
Contents:
• 034Motorsport 2-Piece Floating Rear Rotor Kit
• Installation and Break-in Instructions
Installation Instructions
