Joined: Sep 2011
Posts: 3,372
Likes: 598
From: Baltimore MD
Bikes: '72 Motobecane Grand Record, '72 Gitane tandem, '72 Raleigh Super Course, '73 Raleigh Gran Sport, '73 Colnago Super, '76 Fiorelli Coppi, '78 Raleigh SBDU Team Pro, '78 Trek 930, '81 Holdsworth Special 650B, '86 Masi GC, ’94 Bridgestone RB-T
Strange coincidence - I just yesterday tried to pull the fixed cup on a 1980 Motobecane Grand Touring. It is indeed a Japanese Swiss-threaded BB. I will check the markings tonight. I know it says 35xP1, but I don't remember seeing the S1 marking.
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The man who dies with the most toys…is dead. - Rootboy