5mm Inner Diameter Clutch Super Large Motor Gear Sleeve Upgrade Part for 1/8 1/7 ARRMA INFRACTION Electric Crossing
https://www.vogueparade.com/shopping/EN/200001385/9/1005003749466821/5mm-inner-diameter-clutch-super-large-motor-gear-sleeve-upgrade-part-for-18-17-arrma-infraction-electric-crossing//