Oversized pulleys fit Dura Ace R9100, Ultegra R8000/R8100 and 105 R7000 Shimano derailleurs. By using the standard cage on your Shimano derailleur, you will feel the benefits of reduced articulation in the chain, while retaining accurate shifting. Something that has been a negative side effect of many large pulley systems.
SEAL OPTIONSRoad Seals
Compatible with:Dura Ace R9100, Ultegra R8000/R8100 and 105 R7000 Shimano derailleurs
Switching to an oversized set might require to install a longer chain. Here is a video explaining how to get it just right.