RadiusX 4.0 Clutch - Gas Gas/Rieju RadiusX 4.0 Clutch Kit Updated EXP (expanding friction disk) assembly Base material updated to provide better strength in high temperature environments, critical for the heat clutch systems create Internal wall bases redesigned for strength and rigidity, which helps translate to a more connected lever feel for the rider On the outside of the EXP disk, friction pads now match proprietary friction design found on Rekluse TorqDrive clutch plates, this design helps match oil flow characteristics on the clutch pack beneath, promoting improved cooling capability and consistent operation EXP 4.0 wedges have been improved to now use rolling contact with built-in pins Rolling pins versus sliding creates less friction and resistance, providing smoother engagement and a more responsive feel, creating stronger power delivery overall More direct power delivery, improved durability, and rider-focused functionality Engagement curve designs updated to better match modern motorcycle engine characteristics More tuning options with varying wedge weights and EXP springs Fitment:

Vehicle Type	Model	Years
Offroad	Gas Gas EC 200	2019
Offroad	Gas Gas EC 250	2018-2019
Offroad	Gas Gas EC 300	2018-2019
Offroad	Gas Gas TXT GP 250	2018
Offroad	Gas Gas TXT GP 300	2018
Offroad	Gas Gas XC 200	2019
Offroad	Gas Gas XC 250	2018-2019
Offroad	Gas Gas XC 300	2018-2019
Offroad	Rieju MR Pro 250	2021-2022
Offroad	Rieju MR Pro 300	2021-2022
Offroad	Rieju MR Racing 200	2021-2022
Offroad	Rieju MR Racing 250	2021-2022
Offroad	Rieju MR Racing 300	2021-2022
Offroad	Rieju MR Ranger 200	2021-2022
Offroad	Rieju MR Ranger 300	2021-2022
Offroad	Rieju MR Six Days 300	2022