Shimano BBR60 Threaded Road Bottom Bracket

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Shimano's Ultegra 6800 BBR60 Bottom Bracket was made with the same high level of precision that you've come to expect from the engineers at Shimano. The silky-smooth steel bearings , advanced sealing, and high manufacturing tolerances make the BBR60 the perfect bottom bracket choice. Cups: Aluminum Bearings: Steel Shell Type: External Shell Width: 68 mm Threading: English Weight: 77g Show more