A motor cycle fuel tank adapted to limit the drainage of fuel from the tank when the tank is tipped from its normal generally upright attitude, said tank having a vent arranged to vent the tank when the motor cycle is in a generally upright attitude, a filler arranged to admit fuel into the tank below the upper surface of the tank, whereby in use an air space remains in the tank at all times, and a fuel pipe connected to the tank, said fuel pipe extending from the base of the tank at a first side thereof and terminating as an open-ended vent in the region of the top of the tank opposite said first side, said pipe including a supply portion extending as a branch from a part of the pipe opposite said first side of the tank in the region of the base of the tank.