Originally Posted by
jadocs
I have no experience with 10s, but I put Record 11s on my Master and have no regrets....running Ultegra 11-28 cassette. I would definitely go 12s if you can.
How's that working for you? I'm looking at getting some 11sp centaur for my daughter's bike since its as cheap as Sora but has to work better; I've heard with 11sp that there's cross compatibility with cassette spacing and I do have 11sp shimano splined hubs I can build for the wheels.