Rat bike
![Rat bikes at the UK Rat and Survival Bike rally, 2005](/Images/godic/202502/06/Ratbikes0557.jpg")
![A survival bike, with artistic exhaust system.](/Images/godic/202502/06/Survivalbike0557.jpg")
Rat bikes are motorcycles that have fallen apart over time but been kept on the road and maintained for little or no cost by employing kludge fixes. Survival bikes look similar to but are different in purpose from rat bikes; they are modified for stylistic reasons.