The Rekluse Clutch Pack Upgrade from RadiusCX 3.0 to 4.0, part number 770-8907074, is designed for Yamaha YFZ 450 models, including R and SE versions, from 2004 to 2024. This upgrade kit enables the transition to the advanced EXP 4.0 technology, providing enhanced clutch performance. It includes a fully assembled EXP 4.0 disk with Rekluse’s recommended tuning, and new drive plates and Torq Drive friction plates for maintaining optimal clutch efficiency.

Features:

• Upgrades from RadiusCX 3.0 to the cutting-edge EXP 4.0 clutch system
• Includes a fully assembled EXP 4.0 disk, drive plates, and Torq Drive friction plates
• Delivers more direct power delivery and increased durability
• Upgraded materials for greater strength at high temperatures
• Improved wedge design with rolling pins for enhanced smoothness and responsiveness
• Tailored friction pad design to match revised oil flow dynamics
• Updated engagement curves for compatibility with modern engine characteristics

Vehicle Fitments:

• Yamaha YFZ450 2004-2013, 2017
• Yamaha YFZ450R 2009-2024
• Yamaha YFZ450X 2010-2011
• Yamaha YFZ450R SE 2013-2024

This upgrade kit is ideal for riders looking for improved control and reliability, suitable for competitive and high-demand riding conditions.