I have an Elite Suito direct drive trainer that still has the 11spd Shimano 105 casette that it came with - been riding it with my roadbike, but now in a situation where I’d want to use it with my MTB for one week.
Problem: The MTB has a 12spd SRAM Eagle groupset and also has Boost spacing. From reading the product website, it seems like both of these are not supported out of the box. I currently don’t have access to my Suito, so can’t confirm what adapters there are include, although from reviews it sounds like only 142x is included, not 148 Boost.
So the 2 parts I’d need are
If I were to only get the boost spacer, how bad is it to use the 12spd SRAM Eagle chain on the 11spd Shimano 105 road casette, given that I don’t even have to shift in ERG mode?
Would it be loud, destroy chain, destroy casette?