While Weiner focused on running the business and on marketing, "Cozy" Yamakoshi served as WSI's product development manager, doing most of the frame design work and coordinating and supervising the manufacture of his creations in Japan and exporting them to the US.
OVER THE LAST four years, I've bought on e Bay and elsewhere five Centurion-branded bikes of different models and have become interested in their origins and relative quality.
I'm not an expert on the subject but since there seems to be no Centurion expert on the Web, I thought I would just throw out what I know.
Tange's seamed Infinity Cr Mo tubing began replacing high-tensile tubing on mid-priced Centurion models, such as the popular Le Mans RS, Super Le Mans and Le Mans Mixte models, by the early 1980s.
Lower- end models of this period featured Infinity tubing for the three main tubes and high-tensile tubing for seat and chain stays and fork blades.
The difference in weight between Champion #1 and #2 tubing (and the later high-end tubing used for Centurions, simply labeled Tange #1 and Tange #2 by about 1985) was so small (less than 3oz for a 58cm c-c frame, all eight tubes) that it seems a bit silly to debate supposed frame quality differences between these two high-end tubesets.
The thing to remember is that the high-end Tange tubesets were high-quality Cr Mo steel which were on a par with high-end Columbus SL/SP (Cr Mo) and Reynolds 531 (manganese-molybdenum) tubesets.WCC sought and received permission from Kawamura to use the same mark within the Nishiki logo and in their company marketing. As of 2013, Nishiki Europe markets bicycle models in Denmark, Finland, and Sweden.1977 Nishiki International Ten speed road bike Manufacturer: Kawamura Cycles, Kobe, Japan U. Importer: West Coast Cycle Frame: Lugged, plain gauge Cromoly Fork: high-tensile steel Rear Derailleur Suntour Cyclone Front Derailleur: Suntour Cyclone Stem Shifters: Suntour Brakes: Dia-compe, single pivot side-pull Rims: Araya 27 x 1.25, 36 count spokes Hubs: Shimano Crank: Sugino Super Maxy Seat stem: La Prade Non-standard equipment: handlebars, saddle, chrome cable guides, rear rack Nishiki is a brand of bicycles designed, specified, marketed and distributed by West Coast Cycle in the United States, initially manufactured by Kawamura Cycle Co. In 2010, Dick's Sporting Goods acquired the licensing rights to the Nishiki brand for the U. market and began marketing Nishiki-branded bicycles and accessories. Bicycles are wonderfully simple, eloquent and efficient machines.A few of the bikes were purchased by me, or for me, new, including the brown 1971 Schwinn Super Sport, the Trek 750, the Univega 700FS, and the Trek 850 (for one of my sons).[Atom] [Brooks] [Campagnolo] [Dia-Compe and Weinmann] [Huret] [Maillard] [Normandy] [Nitto] [SR (Sakae)] [Sachs-Huret] [Shimano] [Strong] [Sansin] [Sunshine] [Sun Tour (Maeda)] [Sugino] [Tange] [Williams] [Dancing Chain] [Saddles]The date of manufacture of a bicycle's components can often be used to determine the date of manufacture of the bike itself.