Upgrade Kit – 4.0 EXP Disk

Do you have a Core EXP 3.0, RadiusX 3.0, or RadiusCX 3.0 auto clutch system in your bike? This is the EXP 4.0 upgrade kit for you! Quickly and easily upgrade your existing auto clutch system to enjoy the benefits of Rekluse’s next-generation auto clutch technology: EXP 4.0. This upgrade includes a redesigned EXP 4.0 disk fully assembled with Rekluse’s recommended tuning settings. Replace your EXP 3.0 disk with your new EXP 4.0 disk and you’re ready to ride!

• Consists of: EXP Bases, Rolling Wedges, EXP Springs, Quarter Turn Pins
• More direct power delivery, improved durability, and rider-focused functionality
• Upgraded base material providing improved strength at high temperatures
• Revised base design improving strength and rigidity, translating to more connected lever feel
• Improved wedge design with pins allows for rolling instead of sliding to expand the disk, creating a more responsive feel and smoother engagement
• TorqDrive friction pad design matches revised oil flow characteristics
• Engagement curve designs updated to better match modern motorcycle engine characteristics
• More tuning options with varying wedge weights and EXP springs