I was going to run a dura-ace cassette with a X0 der and an X9 trigger shifter on my new bike. Then I saw that video of the SRAM der vs the shimano der. Somebody commented that the reason shimano needs the B-tension screw is that their parallelagram is angled for a road cassette and when paired with a mountain cassette, the B-tension allows the der to move out of it's own way. This got me thinking. If the SRAM der is matched better to a mountain cassette, will it perform poorly with a road cassette?
Anyone using a SRAM 1:1 setup with road cassettes?
Anyone using a SRAM 1:1 setup with road cassettes?