I have a Vitus bicycle with a Claris groupset. When I put the bike in the highest gear, the chain starts to touch a part of rear derailleur.
I am still understanding how to fix my bike on my own. So don’t know what the specific part called.
I have tried aligning the gears and adjusting the high and low limiting screws, but nothing seems to create enough of a gap between the chain and rear derailleur when in highest gear.