Thread: DIY Super Tourer
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Old 06-22-17 | 09:34 AM
  #31  
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jeirvine
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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

Originally Posted by juvela
Beautiful job and bike!

No shortage of creativity in making up the chainset for Mr. SC. Appears to be Sugino Pro Dynamic arms with name ground away paired with 49D chainwheel set. Interesting that the Pro Dynamic chainwheel bolts were employed. What is the one-key release mechanism seen there? One from Yoshi or another maker? Earliest one I am familiar with was done by Giostra for the Super Zenith chainset of 1965.

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The cranks are actually Electra Ticino arms with 49d rings. They made those arms in 50.4 bcd for a while, and were easier to find in 172.5 than TA or Stronglight (which are hens teeth in that size.) I think I got the arms at the Westminister swap for $15 a few years back.
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