Thread: Has Shimano ever produced a sealed BB with Italian threading???
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Old 02-21-19 | 12:30 PM
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T-Mar
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+1. 73mm are typically ATB BB with English thread. Shimano offered their cartridge BB in Italian threading and 70mm width at Dura-Ace, 600 Ultegra, 105 and RX-100 levels.
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