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CNC machined hollow chromoly spindle Sealed bearings Forged alloy cups 1.37` x 24 TPI English thread SHIMANO Equivalent BB-UN55 73mm ENG SQR...
CNC machined hollow chromoly spindle Sealed bearings Forged alloy cups 1.37` x 24 TPI English thread SHIMANO Equivalent BB-UN55 73mm ENG SQR JIS 116mm Alloy 220-240gUPC/EAN/GTIN: 072774201761
CNC machined hollow chromoly spindle Sealed bearings Forged alloy cups 1.37` x 24 TPI English thread SHIMANO Equivalent BB-UN55 73mm ENG SQR JIS 122.5mm Alloy 220-240gUPC/EAN/GTIN: 072774201778