Originally Posted by Fentuz

Not long ago, i broke the derailleur hanger (second one this winter) and the sora derailleur so I put a m310 which I had spare.
i found that the chain kept dropping as the wide range cassette with std 56 chainring and long chain stays required a long chain and the m310 provided less tension than the sora short cage.

so I decided to fit my spare CX component Rival 11s brifters and derailleur with a clutch.
the cage is a bit long for my liking but it works very well; nice new smooth chain good rolling (50/55psi).

so it is 11s 11-42 with a 69T chainring. Idea was to bring the ratio I ride the most more towards the middle of the cassette.