Big Update! We are replacing the top mold of the tank with one that is to be cut from billet. The drawing is done and an appointment made with the toolmaker! NOW we need to get an S4Rs into our workshop so I can laser scan (and CMM arm scan) under the tank to see what the truth is with that model. The S4Rs got the 1098 fuel flange because it's the one that the newer, cooler bikes are getting. Once we confirm the tank will fit and work on the S4Rs, we'll design and commission a fuel flange that's a bolt on. It'll be at least $100 but will use most/all of the OEM components or we can populate it with our own parts (everything but the level sensor). Thanks, Chris