Our Fat Bob tank sets are a duplication of the late style "Flatside" tank sets. They fit FXST models 1984 thru 1999 and are available in a wide variety of tank caps such as OEM style cam lock gas cap and Screw-In bung and flush cap design. Flush caps are available as a Screw-In bung and our quick-lock style. Quick lock can also be bought with key operated lock. The latest addition is the small aluminum aircraft style gas cap set. These lockable Aero-style gas cap sets have a chrome plated finish and are also separately available. Tanks are the best quality on the market. Can be used for crash repairs or any other Custom application. Available in a 3.5 (13,2L.) and a 5 (18,9L.) gallon capacity. Accepts most FL, FXWG and FXST style dashes.