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Old 03-07-19, 08:29 AM
  #28  
JohnDThompson 
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Originally Posted by abellanti View Post
Pino morroni bottom bracket..not the most exciting, but an interesting piece engineering.
The cartridge is Italian threaded, all the way across, so the bottom bracket shell needs to be tapped with a lathe, to ensure the thread is consistent from one side to the other.

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