Thread: Is this BB iso?
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Old 08-08-11 | 03:44 PM
  #6  
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Bianchigirll
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From: Shady Pines Retirement Fort Wayne, In

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the IRD BBs like this one

New! IRD Quad QB-55 68mm Bottom Bracket Sets $29.95 <H3></H3>
Made in Japan by Tange
CroMoly J.I.S. square taper hollow spindle
BB Shell Width: 68 mm
Available spindle lengths: 107, 110, 113, 115, 118, 122.5 & 127.5mm
Steel Cups
BB Thread Type: ISO/English
With two steel cups, this is an excellent upgrade to the Shimano BB-UN54.

are the only ones I see close the UN54 with ISO mentioned but are they really talking about the taper? I would check IRDs website.

I would be suprised it shimano ever made ISO BBs since they would have intended for their BBs to used on their own cranks.
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