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@Hulsroy
On my gravel bike thing I am having issues with shifting. It has never been great, but after making these inserts and moving the wheel back especially shifting down to the smallest cog have been troublesome.
My thinking is, and this has been confirmed by several helpful people, that the wheel axle is simply to far back in relation to the gear hanger causing too much chain wrap and therefore bad shifting.
I've tried messing with the b screw etc.
Sooo Sam at Stayer Cycles send me a Wolftooth Goat link to try and push the rear mech back, and that did help but the offset was too much for the rear mech so I couldn't shift into the lowest gear (32t on the cassette).
So I need a zero offset hanger adapter that moves the rear mech back. Not knowing of any I decided to draw it up in cad, program it and CNC machine a prototype. Machining is not going great as my CNC really isn't for 3d metal surfaces but I am hoping it will work well enough that I can confirm that this is what I need to improve shifting.
Worst case I cut off the surly dropout hanger and move it back. But this is more fun...
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