Radium Engineering Clutch Fork Stop | Multiple Evo Fitments (20-0262)Evo 8 9 and X Clutch Fork Stop By Radium Engineering 20 0262 The Radium Engineering clutch fork return stop addresses a common problem on the Mitsubishi EVO pull type clutch slave cylinder. During hard shifting and fast clutch pedal operation, the clutch fork can return too far and cause the throw out bearing to become unclipped from the clutch fork. This results in expensive transmission removal to fix. The Radium clutch return stop prevents the fork