The REKLUSE RadiusX 4.0 Clutch is designed for select Yamaha motorcycles and features an updated EXP expanding friction disk assembly. Its revised base material provides improved strength in the high-temperature environments created by clutch systems, while redesigned internal wall bases increase strength and rigidity for a more connected lever feel.
The outer EXP disk uses friction pads that match the proprietary friction design found 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.
Updated engagement curve designs are intended to better match modern motorcycle engine characteristics. The assembly also provides tuning options through varying wedge weights and EXP springs. Distributor part number: RMS-8307077. Manufacturer part number: RMS-8307077. Vehicle fitment includes 2005, 2007, 2008, 2009, 2010, 2011, 2012 and 2014 Yamaha WR450F models, plus 2005 and 2006 Yamaha YZ450F models.
Features:
- Updated EXP Assembly: Expanding friction disk assembly uses updated materials and design features for improved high-temperature strength and durability.
- Reinforced Internal Walls: Redesigned internal wall bases improve strength and rigidity for a more connected lever feel.
- Matched Friction Pad Design: Outer EXP disk friction pads match the proprietary friction design used on REKLUSE TorqDrive clutch plates.
- Improved Cooling Characteristics: Friction pad design helps match oil-flow characteristics within the clutch pack to promote consistent operation.
- Rolling-Contact EXP 4.0 Wedges: Built-in pins create rolling contact to reduce friction and resistance for smoother engagement and responsive feel.
- Tuning Options: Varying wedge weights and EXP springs provide additional engagement tuning options.
- Vehicle Fitment: Fits 2008, 2011, 2010, 2005, 2012, 2007, 2009 and 2014 Yamaha WR450F models, and 2005 and 2006 Yamaha YZ450F models.
Fitment:
2005 Yamaha WR450F
2005 Yamaha YZ450F
2006 Yamaha WR450F
2006 Yamaha YZ450F
2007 Yamaha WR450F
2008 Yamaha WR450F
2009 Yamaha WR450F
2010 Yamaha WR450F
2011 Yamaha WR450F
2012 Yamaha WR450F
2013 Yamaha WR450F
2014 Yamaha WR450F
2015 Yamaha WR450F