transmission
shaft-transmission in shaft transmission ou gear,input,2nd,18t gear,input,5th,27t gear,input,top,29t gear,output low,43t gear,output,2nd,38t gear,output,4th,31t gear,output,5th,29t gear,output,top,28t gear,output 3rd,34t gear,input 3rd&4th,25 sprocket-output,13t seeger spacer,17.2x23x0.5 ring,snap (17mm) o-ring (16.8mm) entretoise