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Old 03-09-19, 09:26 AM
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Originally Posted by T-Mar View Post
While some touring and ATB models featured multiple bottle boss sets earlier, in general, most brands introduced them on on competition and sports models circa 1983-1985, first on the high grade models, then trickling down the brand line.

Centurion first introduced this feature for the 1984 model year, on the Turbo and Comp TA, then trickled it down to lower models in later years. Lotus also appears to have introduced this feature on it's higher end models for the 1984 model year. Trek introduced dual bottle boss sets in the 1983 model year on the 970. Miyata introduced it for the 1985 model year, on it's top three models. The earliest Schwinn examples I've seen are the 1984 model year Paramounts and Peloton. Remember, we're talking only non-touring models.

Looking at your list, the Trek is really too early for this feature. The Lotus are in the right time frame but a bit too low for early adoption (the Legend Compe must have just missed out). The only bicycle in your list that is a real surprise in the 1987 Asian market Ironman. Dual bottle sets were almost standard on mid-range models by then, at least in North America.
I'm guessing the contracted bikes like the SRs, Lotuses, and Centurions had different timelines on shifter bosses/cable guides. The SR and Trek are the only ones without shifter bosses. All have dedicated cable guides except for the Trek. I also have:
85 Miyata 912. Top DT aero shifter boss/brazed cable guides.
85 Team Fuji. Top DT aero shifter boss/brazed cable guides.
82 Centurion Mixte. No bosses/clamp on guide.
87 Shogun Mixte. No bosses/clamp on guide.

I guess the contracting companies were keeping the cost down.
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