Thread: UN-55 Bottom Bracket
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Old 09-20-13 | 11:10 PM
  #45  
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ThermionicScott
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From: CID

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)

That lip on the NDS cup is weird and makes no sense for this application -- I had to dig through my UN55s to make sure I wasn't crazy. The 107 and 113mm models I have don't have the lip, but the 115mm one does. No wonder some of you were having trouble getting the NDS end of the bottom bracket to stay put after it had been torqued down.
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