Rekluse RadiusX 4.0 Clutch for Yamaha YZ125/X (RMS-8307075)

Upgrade clutch performance on compatible Yamaha YZ125/X motorcycles with the Rekluse RadiusX 4.0 Clutch, part number RMS-8307075. This updated EXP expanding friction disk assembly is engineered for improved durability, smoother engagement, and more consistent operation under demanding riding conditions. Its revised base material provides greater strength in high-temperature environments, helping the clutch manage the heat generated during aggressive use.
The internal wall bases have been redesigned for increased strength and rigidity, translating into a more connected lever feel and improved rider control. On the outer side of the EXP disk, friction pads use Rekluse’s proprietary friction design found on TorqDrive clutch plates. This design helps align oil flow characteristics with the clutch pack beneath, supporting improved cooling capability and consistent clutch operation throughout the ride.
The EXP 4.0 wedges now use rolling contact with integrated pins rather than sliding contact. Reduced friction and resistance help deliver smoother engagement, a more responsive feel, and stronger power transfer. Updated engagement curve designs are calibrated to better complement modern motorcycle engine characteristics, while available wedge weights and EXP springs provide additional tuning flexibility for riders seeking a customized clutch response.
Designed for riders who value direct power delivery and dependable clutch performance, the Rekluse RadiusX 4.0 Clutch combines refined engagement, improved heat resilience, and rider-focused adjustability. Verify motorcycle fitment and installation requirements before ordering to ensure compatibility with your Yamaha application.

Features:

• Updated EXP assembly improves strength and performance in high-temperature clutch environments

• Redesigned internal wall bases increase rigidity and help provide a more connected lever feel

• Proprietary Rekluse friction pads support improved oil flow and cooling within the clutch pack

• EXP 4.0 wedges use rolling contact and integrated pins to reduce friction and resistance

• Smoother engagement and more responsive clutch feel support stronger power delivery

• Updated engagement curves are designed for modern motorcycle engine characteristics

• Multiple wedge weights and EXP springs provide additional clutch tuning options

• Rekluse RadiusX 4.0 Clutch, part RMS-8307075, for compatible Yamaha YZ125/X models

Ships from Parts Unlimited.