To my eye it appears to be very similarly styled to the 1985 "2500 series" above, the slight change in the naming convention isn't much but as T-mar has pointed out before they were known to move around what model was at what number depending on the year. Although it looks like they followed with their touringesque style judging by the eyelets and laid back looking (to me anyhow) geometry. Looking forward to adding the serial.