Rat bike
Rat Bikes are motorcycles that, over time, have fallen apart and been kept on the road and maintained for next to nothing.
There are also bikes that, to the untrained eye, appear to be rat bikes, but are not. These are Survival Bikes, influenced from the Mad Max One and Two films.
Both Rat and Survival bikes present an ideological alternative to the consumerist mainstream. The endless quest for speed of the modern sportsbike or the acres of chrome in 'cruisers' or (oxymoronic) factory produced 'custom' style bikes is subverted by the alternative approach of the rat bike enthusiast. Matt black paint requires no polishing. The guiding principle of functionality and practicality put useable power in all road situations over speeds that can only be attained on a racetrack.
Whereas the latest/biggest/fastest/most expensive motorcycle confers a spurious sense of superiority in some, the ratbiker is impressed by ingenuity; the decades-old bike that has been kept on the road by whatever is at hand or the resurrected wreck have kudos. The ratbiker knows that todays shiny sportsbike is tomorrows forlorn wreck awaiting resurrection by cunning artistry and skill.