> SB 2215 has no braze-ons under the top tube. It has braze-ons for the
shift
> levers, a single water bottle on the down tube, cable guides on the bottom
> bracket and a cable housing stop on the chain stay. It has four slots in
> the underside of the bottom bracket. So the lack of braze-ons for cabling
> would make it a 1975 or 1976?
Looking over the photos in "The TI Raleigh Story" and based on what the Team was riding, it was 1978 when 1)the braze-ons on the bottom of the top tube appeared and 2) the brazed-on cable guides atop the bb were replaced by the simple expediant of groves on the bottom of the bb. So yours is most likely a '76-77. And yes the Team Bikes during that period had bottle bosses on the down tube only.
Me, I like Ilkeston's approach with bottle bosses (down tube) on my '74-75 Team Pro: they used gear lever bosses instead (!) and, of course, the machine had clamp-on gear levers! Go figure. This machine is identical to what the Team used in 1974, the last they used 531 frames.
Peter Kohler
Washington DC USA.