I have an Ultegra 8000 derailleur, and I was planning on replacing my jockey rings. Shimano replacements are $20, and they seem to work fine, but Kogel is blowing out their gen1
12-tooth pulleys for $59 and the 11-tooth ceramic bearing pulleys for $89. Other than bling factor (which can't hurt--I already have a gold headset and gold bar-end Muc-Off patch kit), will I notice a difference?