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Shimano Dura-Ace 7900 Bottom Bracket

Item #: 37-1304
Regular price: $44.95
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Shimano Dura Ace 7900 10-Speed Bottom Bracket:
Nothing was left untouched when Shimano created their Dura-Ace 7900 groupset, including the bottom bracket. The SM-BB7900 bottom bracket cup unit has wider bearing spacing for greater stability. In addition the seal design was improved to provide smoother rotation and longer durability.

Click here to see a diagram detailing the compatibility of Dura-Ace 7800 and Dura-Ace 7900.

Shipping Weight: 1 lb.