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Old 07-25-24 | 10:13 AM
  #21  
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dpicare26
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Bikes: '15 BMC Granfondo '11 Stevens Carbon Team CX, '74 Schwinn Paramount, '85 Trek 600, '89 Schwinn Circuit

Originally Posted by unworthy1
the bottom bracket was English threaded, however.. (loosened counter clockwise)
CCW to loosen which cup?
If both then that's regular RH threading to both cups and indicates a FR (or Italian but that's not gonna happen) BB.
If you meant the NDS cup then CCW to unscrew is an indication of ANY threading: they ALL unscrew CCW.
If the DS cup it should require CLOCKWISE turning to unscrew the LH threaded cup for a British (or Swiss) BB
If you have both cups removed then TEST the BB shell with a known BSC (British) BB unit, but depending on brand there could also be markings on the cups which tell you what threading is used
both cups loosened CCW.
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