Originally Posted by jaxgtr

I have this same issue and this is what I did. My Emonda has been running a 11-28 with a short cage, and my wife's bike, my Domane, and my CrossRip all have been running an 11-34. I recently purchased a R8000 long cage to put on my Emonda so if I want to run some wider cassettes for my trip to the Carolina's later this year, I can. Now, I can run the 11-28 on my wheel and use the 11-34 on the trainer with my Emonda without having to change chains, as the r8000's keeps better tension. I got a 11-34 off ebay and put it on the trainer.

Oh and I also am now running a 14-28 on my Domane and did not need to remove and links, and can still use the 11-34 cassette on the trainer.

One Cassette to rule them all.