https://www.bike-discount.de/.../shimano-cues-di2-rd... Suppose XT DI2 shifter will not work(different distance teeth likglidecassette). But finally 11-50, 11speed and DI2. Two cassettes cheaper and heavier CS LG400 and lighter CS LG 700. Not clear to me if this wil also work with EP800.(works with EP801 en EP600) Found compatible shifters in https://si.shimano.com/.../technical-assets-techdoc-techinfo