Clubman yes the Barcon ends are gray. I have just printed from the Vintage Trek website the serial number dating of components for SunTour, Sunshine and Sugino and will get my head lamp on and see what I can find on the components in response to T-Mar's request to aid in dating construction of this bike. I will also take some chain cleaner and really clean the bottom bracket where the stamped serial numbers are to see if there is hidden "K" in front of the visible "S" before the numbers. Will post what I find out and thanks.