Shimano BB ES51 Octalink V2 Bottom Bracket. If your bike is rocking Shimano cranks with Octalink V2 splines then the Shimano BB ES51 bottom bracket is just what you need. Easy to install, maintenance free, and built to last, this bottom bracket will treat you right.
|Bike Nashbar||$21.99 on sale||$48.99|
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