Radius X - Yam WR450F (19) YZ450F (10-21) YZ450FX (19-20)
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RadiusX – a high performance auto clutch is just a clutch pack swap away. RadiusX combines TorqDrive friction disk technology with our innovative EXP (auto clutch) disk. TorqDrive provides more clutch disks in less space, delivering high performance auto function within the framework of the stock clutch.