Originally Posted by
JohnDThompson
That, and the Tange "Champion" head lugs. 5xx and 6xx series frames used a one piece head tube/lug unit rather than the three separate pieces used on the 7xx, 9xx, and 170 frames. There are also differences in the dropouts and bottom bracket shell that can distinguish the models. Yours is undoubtedly a 760 frame.
I like the Tim Isaac cast BB. Very stylish.
Last edited by OldsCOOL; 10-18-14 at 11:39 AM.
Reason: Corrected to "Tim" Isaac.