REKLUSE RadiusX 4.0 Clutch for Yamaha YFZ 450/R/X – Part RMS-8307074

The REKLUSE RadiusX 4.0 clutch assembly (Part RMS-8307074) is engineered for high-performance Yamaha YFZ 450, R, and X models. Featuring an updated EXP (expanding friction disk) assembly, this clutch offers enhanced durability and improved heat resistance, critical for demanding riding conditions. The base material has been upgraded to withstand higher temperatures, ensuring consistent performance during extended rides or aggressive racing scenarios. Internal wall bases have been redesigned to increase strength and rigidity, translating into a more connected and precise lever feel for the rider, which enhances control and confidence on the trail or track.

The outer surface of the EXP disk now incorporates friction pads that match the proprietary friction design found on Rekluse TorqDrive clutch plates. This design improves oil flow characteristics beneath the clutch pack, promoting better cooling, reducing heat buildup, and ensuring reliable operation even under strenuous conditions. Additionally, the EXP 4.0 wedges have been upgraded to utilize rolling contact with built-in pins, replacing sliding contact. This modification reduces friction and resistance, resulting in smoother engagement, quicker throttle response, and a more direct power transfer to the drivetrain. The overall effect is a stronger, more responsive clutch that enhances rider control and confidence.

The engagement curve has been refined to better align with modern motorcycle engine performance, offering a more seamless and predictable power delivery. The clutch system also provides greater tuning flexibility with different wedge weights and EXP springs, allowing riders and technicians to customize the feel and performance to their specific riding style and conditions. Whether for aggressive trail riding or competitive racing, the REKLUSE RadiusX 4.0 clutch delivers improved durability, smoother operation, and enhanced performance, making it an essential upgrade for Yamaha YFZ 450 owners seeking reliable and responsive clutch performance.

Features:

• Updated EXP (expanding friction disk) assembly with enhanced heat resistance

• Base material redesigned for improved strength in high-temperature environments

• Internal wall bases reinforced for increased rigidity and better lever feel

• Friction pads on outer EXP disk matching proprietary Rekluse TorqDrive design for optimal oil flow and cooling

• EXP 4.0 wedges utilize rolling contact with built-in pins for smoother engagement

• Reduced friction and resistance for more responsive power delivery

• Engagement curve refined to match modern engine characteristics

• Enhanced tuning options with different wedge weights and EXP springs