SHIMANO ULTEGRA 10 FC6600 / FC6603 HOLLOWTECH II BOTTOM BRACKET
The bottom bracket bearings for the HollowTech II FC6600 crankset. Minimal bearing interface gives superbly smooth rolling. Compatible with any Hollowtech II chainset.
Set includes left and right hand cups, inner cover and inner O-rings
Sealed cups keep out dirt and water
Maintenance free
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Product Code: AAA-000
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