Join Date: Jun 2010
Location: NW,Oregon Coast
Mentioned: 27 Post(s)
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Quoted: 1766 Post(s)
Square taper the shimano UN type BB are a common choice ,
for those who buy bikes with threaded BB shells..
UN 26 is only $20ish.. BB-UN26
The plastic left end wont corrode in place like the aluminum of the next higher priced one, potentially, can.