I do not think that any derailleur will have a cage so short that it doesn't come besides the tire with ETRTO355 wheels.

With the Shimano RD-R8000GS that according to Shimano goes up to 34t and from testes goes up to 36t, there is no problem of rubbing.

But it also depend of the chain length. The chain must be adjusted to be just long enough to accept the combination biggest chainring+biggest cog, in my case its 50x34. The critical condition for rubbing is the chain on the biggest cog, as soon as its on another cog, the chain moves outward the derailleur cage isn't close to the tire anymore.


AS can be seen with my chain length adjustment and this mid cage derailleur, when the chain is on the biggest cogs, the derailleur cage comes just above the place where the tire is the widest.