_:n8574b1b9adb14d87b5e8894a32d64e7fxb0
<http://schema.org/description>
"BSA is another way of stating English threading. The initialization comes from Birmingham Small Arms, which made bicycles. English threading on road bikes mean a 68mm-wide, 34mm-inside-diameter..."
<https://www.goodspeedcycles.com/product/ceramicspeed-bsa30-bottom-bracket-389358-1.htm>