Have you wanted to try upgrading your pulley system to the OSPW(Over Sized Pulley Wheel)This is one of the top line units, Carbon cage, pulleys wheels fitted with ceramic low resistance bears over sized wheels to reduce chain twist, improve shifting,
Model Name : SHC3
Cage : Carbon
Pulley : Carbon
Bearing : Ceramic
Teeth : 13T + 19T
Compatibility : Type A - Shimano Dura Ace (9100/9150/8000/8050)
Type B - Shimano 105(y2019) (7000)