X-Clutch XKNI18520-2E 7.25" Twin Solid Ceramic Clutch Kit with Chromoly Flywheel for Nissan RB Engines

The X-Clutch XKNI18520-2E is a Stage 5 motorsport-grade twin solid ceramic clutch kit engineered for Nissan RB-series engines. This 7.25-inch (185mm) twin disc setup includes a chromoly flywheel and is purpose-built for track-focused and high-performance applications demanding maximum torque capacity and heat resistance.

Key Features:

• 7.25" (185mm) Twin Solid (Rigid) Ceramic Discs — solid ceramic friction material delivers superior heat capacity and aggressive torque holding for motorsport use
• Chromoly Flywheel Included — lightweight chromoly steel flywheel improves throttle response and reduces rotating mass
• Lightweight Twin-Disc Design — optimized for improved throttle response combined with high torque capacity
• SFI Certified — designed and manufactured to meet SFI Spec 1.1 for replacement flywheels and clutch assemblies, and SFI Spec 1.5 for multiple disc clutch assemblies
• High Clamping Force Pressure Plate — engineered for increased clamping force to handle elevated power levels
• Complete Kit — includes friction discs, pressure plate, release bearing, pilot bearing, chromoly flywheel, alignment tool, and applicable technical service bulletins

What's Included:

• Twin 7.25" solid ceramic clutch discs (x2)
• High-performance pressure plate / cover assembly
• Chromoly flywheel
• Release bearing and carrier
• Pilot bearing
• Clutch alignment tool
• Technical service bulletins (as required)

Important Note: As with all high-performance multi-disc and lightweight flywheel upgrades, some increase in NVH (noise, vibration, harshness) in the cabin may be experienced. This is a normal characteristic of this product type. Professional installation is recommended. Inspect all clutch actuation components for wear during installation.

X-Clutch (Xtreme Clutch) motorsport products are developed from decades of experience with professional motorsport teams worldwide, supplying national-level competitors in drift, circuit racing, rally, and time attack disciplines.