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Old 03-04-12, 08:35 AM
  #19  
bradtx
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Telly, The UN-54/55 has better seals also. As you have one on the way, install it rather than retightening the UN-26.

While it's possible, it's very unlikely that the BB shell is causing a problem. The NDS plastic cup (which was introduced to reduce creaking noises) is also not likely the problem. You can also ask the bike shop to "face and chase" the BB shell prior to installation. This will square the BB shell edges to the threading and insure full contact on the drive side.

Brad
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