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The smart hack is to 3d print the little metal gear and the little cable guide fin that decides 100% of your indexing characteristics. There’s a company that makes a lot of money selling dinky little 3d printed 12-click gears that replace the dinky little 11-click gears in road/gravel 11 speed shifters, and a new cable guide fin, and turns them into Eagle 12 speed
>pic related, the one thing solely responsible for 12 speed indexing.
