Thread: Which Sugino 75 bottom bracket?
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Old 02-01-09 | 02:26 AM
  #4  
REMspeedwagon
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From: NR
Originally Posted by mr_macgee
I believe Shimano UN54 is JIS taper, where Sugino 75 has ISO taper & use a 109mm BB for 42mm chainline.
yep this is correct.
the Sugino 75 uses a 109mm bb and it is ISO taper.
don't run it on the UN54.
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