Join Date: Oct 2004
Location: DC / Maryland suburbs
Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
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Originally Posted by EJ123
What are the negative outcomes if one has any type of chain sag?
The biggest problems would be dropping your chain and having it slap and bounce noisily when you go over bumps. Also the shifting will suffer.
Usually you can fix it by shortening the chain by a link or two. But if the derailer springs are not taking up the slack, the problem may persist. In that case cleaning and lubing the derailer pivots often helps...