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Sugino Mighty Tour Crank Taper

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Sugino Mighty Tour Crank Taper

Old 10-19-07, 02:44 PM
  #1  
ctavel
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Sugino Mighty Tour Crank Taper

Hey, does anyone know what taper bottom bracket these cranks accept? The only marking on the crank, aside from the length, is A-5 on the drive crank and A-2 on the non-drive side.

thanks in advance
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Old 10-19-07, 08:23 PM
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John E
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Definitely standard 1970s Euro ISO, as opposed to the thicker Shimano JIS. Been there ... done that. I have freely swapped vintage European cranks with Sugino Mightys.

By the way, watch the pedal eyes; particularly the ca. 1970 first-generation Suginos break across them. (Been there ... done that, as well.)
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Old 10-20-07, 07:32 PM
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Awesome, thanks for the info. Now the question is, who makes a decent quality 68mm, English threaded bottom bracket? Does Miche?
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Old 10-21-07, 01:44 PM
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An ISO-threaded BB should be easy to find. The biggest trick is getting the proper spindle length, although you may be able simply to match your existing unit.
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Capo: 1959 Modell Campagnolo, S/N 40324
Capo: 1960 Sieger, S/N 42624
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Bianchi: 1981 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
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