V4 fuel line, part number 858884
Fitment - RSV4 09-21, Tuono 11-21
Genuine Aprilia flexible high pressure fuel line, part number 858884, item number 18 in the diagram.
This connects to the fuel pump under the fuel tank and onto the rigid plastic pipe that comes from the throttle bodies. It comes as pictured, with the push fit connectors at both ends.
As it is flexible, it means it is easier to remove and replace the tank which is particularly important when carrying out the valve clearance checks on these Velociraptor like speed V4's.