Niner Bio-Centric EBB - Silver

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Niner Bio-Centric EBB - Silver The Niner Bio-Centric EBB ia an eccentric bottom bracket designed for use with Niner EBB frames. The offset opening allows chain tension adjustment b y simply rotating the bottom bracket. Run a single speed setup without a tensior, or adjust the geometry of your bottom bracket and chainstay. FEATURES Lightweight alloy construction Fits only BB shells with a 55mm diameter and 68mm width Show more