New jockey wheels for Shimano Sora
On my bike, the tension pulley of the derailleur is worn and I think it is time to get both stock 11T pulleys replaced along with a new chain. Which ones should I go for? I have seen the ones labeled for "Deore/slx/lx/105" that are supposed to be compatible with sora, but is it possible to replace them with something just better (not anything fancy and certainly not those that sell for 100 or more)?
Would the ones made for "Shimano Ultegra / XT / Saint" do? They are 11T, better made with one having sealed bearings and the other ceramic bushing, and it costs just 5 euros more (s. offer). Would these fit?
I have also seen the KCNC ceramic pulleys. They come in 11T pairs too, but both of them look exactly the same while the ones, the tension pulley is a bit different to the guide pulley. Would they work, are they going to be noisier, wear faster?
My last option are those made from Elvedes. They have sealed bearings.
What should I go for? What would be the best option for a smooth drive-train?