Originally Posted by
srode1
Nice build. I am curious why you chose the 817 RD instead of the 815 when there is less take up on the 817 and the 815 reportedly works with an 11/42 cassette.
I thought the 817 would be a better fit for the system with the 42t rear cassette. Turns out the 817 has an SS length cage and didn't have quite as much chain wrap as I had expected. Overall it seems to work well as is, but maybe not an optimal set up.