Old 07-07-19, 12:09 PM
  #9  
T-Mar
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+1, this is definitely a 1984 version. Besides the different colour option, the 1984 version added a 2nd set of bottle bosses and switched from a flat to curved brake bridge.

Regarding the anodizing, Dia-Compe did offer a bronze colour. These may not have faded. It's easy enough to tell by examining areas where the sun don't shine. For instance, you can remove the pads and examine the surfaces where the pad carriers mate with the calipers.

Personally, I think people get too carried away with Tange #1 . Tange #1 through #5 all used the same fork steerer, fork blades, seat stays and chain stays. So, the only difference was in the main triangle and even then #1 through #3 used the same seat tube, so for the commonly seen #1 and #2 framesets, the only difference were the top and down down tubes.

However, WSI did not spec standard tubesets for their Tange #1 frames. Centurion Ironman, Comp TA and Turbo owners regularly report 27.0 - 27.2mm seat posts, which would be far too large for the standard double butted seat tube used with Tange #1 . The post sizes suggest a custom, single butted version of the seat tube or possibly the standard Tange #4 seat tube, which was single butted 0.9mm/0.7mm.

Last edited by T-Mar; 07-07-19 at 01:05 PM. Reason: typos
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