BC 1.37 stamped on the outside of my bottom bracket. What does this mean? British thread?
the thread is 1.37 diameter x 24 threads per inch
british/english
;)
what are you up to? tinkering?
@HillyBen started
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the thread is 1.37 diameter x 24 threads per inch
british/english
;)
what are you up to? tinkering?