Compared to my entry level Shimano (Tiagra?) class of wheels, the used C24 carbon-aluminum laminate wheels (10 years+ old now) saved: 240g rear and about half of that up front.
Weight Measured Including Tires and rear cassette
1.49 KG - DuraAce C24
1.73 KG - WH-R550
0.240 KG savings Rear
Rear Wheel. I believe that both front and rear have a Titanium Hub. Rear with Hub + Titanium Free Hub body.
https://bike.shimano.com/en-EU/product/component/duraace-r9100/WH-R9100-C24-CL-R.html
