The changes to the existing Dura groupset are 50-34 carbon ti, xxe170 crank, ceramic bearing big pulley, srm power meter
Changes to the Red e1 groupset are the chaser brake mount
The disc rotor was used as a galper.
I thought it would be lighter than Red even though I changed Dura Ace crank
I didn't know there would be a 10 gram difference.....
When I switched to SRAM, I put on a chain catcher, and that was exactly 13 grams...
I wrapped the bar tape of the same brand longer....
I learned that Shimano is heavier than I thought for a lot of money.
