Freewheel spacer ring fits behind the freewheel. You may need this to prevent the freewheel from binding on the motor or to keep the chain from rubbing on it. It comes with all rear kits but if you lost one, here it is.
Replacement set of 14 mm Nuts and Washers for Magic Pie, Smart Pie or Black Magic Motors. NOTE: These are used but in good working order.