Crash bungs and bars are fitted to motorcycles for the purpose of protecting side fairings and other expensive components (such as engine casings, swing arms, etc.) in the event of a crash, or more embarrassingly dropping the bike.
Panniers/ Top Box
A top-box is a hard storage compartment fitted behind the seat and is often accompanied by side panniers which provide safe storage and protect your stuff from bad weather. We only need to know if you’ve added these after-market, not if these were standard equipment at the factory, i.e. as fitted to the Honda Goldwing or BMW K1200LT.