Send pictures of your bike. I'd need a direct overhead of the tank and the seat (mounted) then one of the same area with the seat off. I'd also need a picture of the side of the tank with and without the seat mounted (both sides). Then I'd need a tracing of the frame area where the tank meets (easier than measurements), Just lay a piece of paper over the frame and trace the outline of the rails and mark the end of the tank, any mounting holes, brackets, etc. (which I can them line up with the pictures to determine the measurements). I would need a similar tracing of the side of the tank where it meets the frame and seat area so I can make the tank stretch at the proper angle. Last, I need a tracing of the front of the seat, marking the point where your tank stretch should end. Hopefully this all makes sense.