| Article Index |
|---|
| Removal of BB Units: Eccentric BB |
| Step 01: release the clamp bolts |
| Step 02: remove the unit |
| All Pages |
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BB is a common acronym for a Bottom Bracket.
Task Summary
Essentially, an eccentric BB unit is like another shell that sits within the frame shell and houses the actual BB. (Inboard BBs are more commonly found within eccentrics, but it is possible to have other BB types within it.) Eccentric BBs are designed to keep chain tension and, should they become grinding or fail to work at all, then they will need replacing.
Tools
