FS: Dura Ace Englsh Bottom Bracket $20

Replaced this one with a new one with Ceramic Bearings, which I’m sure is slower…

For sale in the original box, this was pulled off of a brand new bike and was never ridden on but was mounted on the new bike at delivery.

Thanks,

Julian

http://farm4.static.flickr.com/3440/3899715398_a438508cd2.jpg

Would this work with a Ultegra SL double crankset? If so, I am interested.