Niner Bio-Centric EBB – Black
The Niner Bio-Centric EBB ia an eccentric bottom bracket designed for use with Niner EBB frames. The offset opening allows chain tension adjustment by 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
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