If you go ceramic you have to go all in, BB, Hubs and Jockey wheels. I spent 8 weeks test ceramics based on Power, Speed, Heart Rate and timed efforts and over the 8wks I saved 14w over standard bearings so for the likes of MVDP, Alliphilipe and Wout it makes a difference but for the standard weekend warrior, don't have that pizza on Friday with 6 beers will be a better saving.