Originally Posted by
vredstein
Big/big-Never again. Never, ever again. Got burned using this method at the shop. My fault for not fully understanding the mechanics of chain length, and blindly going by this method. Wound up with a bent hanger, ruined derailleur, etc.
How did a
properly installed chain using the big-big method cause damage? Did you change the cassette for one with a larger large cog afterwards? Was the total tooth count so far beyond the rear derailleurs wrap capacity and you tried little-little and the chain was
so slack it caught in something? Otherwise I don't see how it could be damaging.