The REKLUSE RadiusCX 4.0 Clutch is an updated expanding friction disk assembly designed for specified Yamaha motorcycle applications. Its updated base material provides improved strength in high-temperature environments, while redesigned internal wall bases increase strength and rigidity to help deliver a more connected lever feel for the rider.
The EXP disk features friction pads that match the proprietary friction design used on REKLUSE TorqDrive clutch plates. This design helps match oil-flow characteristics within the clutch pack, promoting improved cooling capability and consistent operation. EXP 4.0 wedges use rolling contact with built-in pins, reducing friction and resistance compared with sliding contact for smoother engagement, a more responsive feel and stronger power delivery.
The updated engagement curve is designed to better match modern motorcycle engine characteristics. The system also provides more tuning options through varying wedge weights and EXP springs. Distributor part number: RMS-8907176. Manufacturer part number: RMS-8907176. Vehicle fitment: 2024 Yamaha YZ450FX, 2023 Yamaha YZ450F, 2025 Yamaha YZ450F, 2026 Yamaha YZ450FX, 2024 Yamaha YZ450F, 2024 Yamaha WR450F, 2025 Yamaha WR450F and 2025 Yamaha YZ450FX.
Features:
- Updated EXP assembly: Expanding friction disk assembly with an updated base material for improved strength in high-temperature environments.
- Reinforced internal walls: Redesigned internal wall bases improve strength and rigidity for a more connected lever feel.
- TorqDrive friction design: External EXP disk friction pads match the proprietary friction design found on REKLUSE TorqDrive clutch plates.
- Improved oil-flow matching: Friction pad design helps match oil-flow characteristics in the clutch pack to promote cooling capability and consistent operation.
- EXP 4.0 rolling wedges: Built-in pins provide rolling contact, reducing friction and resistance for smoother engagement and a more responsive feel.
- Updated engagement curve: Designed to better match modern motorcycle engine characteristics.
- Tuning options: Provides options using varying wedge weights and EXP springs.
- Vehicle fitment: Fits 2024 Yamaha YZ450FX, 2023 Yamaha YZ450F, 2025 Yamaha YZ450F, 2026 Yamaha YZ450FX, 2024 Yamaha YZ450F, 2024 Yamaha WR450F, 2025 Yamaha WR450F and 2025 Yamaha YZ450FX.
Fitment:
2023 Yamaha YZ450F
2024 Yamaha WR450F
2024 Yamaha YZ450F
2024 Yamaha YZ450FX
2025 Yamaha WR450F
2025 Yamaha YZ450F
2025 Yamaha YZ450FX
2026 Yamaha YZ450FX