Rant Bang Ur Mid Bottom Bracket

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The Rant Bang Ur Mid BB kit includes 2 precision R12 sealed bearings, 2 CNC machined 6061 aluminum cone spacers for a clean look, an aluminum internal spacer, and 4 steel crank arm spacers for dialing in your chain alignment. Size: 19mm or 22mm and American R12 Sealed bearings 100% CNC 6061-T6 alloy cones Include spacers for custom fit Weight: 5.5 oz. Show more