Originally Posted by
conspiratemus1
I have a left-threaded lock ring that you can have free if you find you need it. Our old tandem came with lock rings on both sides of both (cartridge) bottom brackets so that you could adjust the chain line a few mm each way.
Funny, I would think the eccentric could just be knocked this way or that a few mm. They can move sideways too! I'm guilty of employing that trick, within reason! Nowadays I have shims for it, but aluminum freehub spacers will also work in a pinch.
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Owner & co-founder, Cycles René Hubris. Unfortunately attaching questionable braze-ons to perfectly good frames since about 2015. With style.