Dura-ace 7800
Dura-Ace must always be the best. That’s the development philosophy of Shimano. For that end, they keep pursuing the performance without compromise by adopting advanced technology and upgrading the quality of products. That’s because the very best riders use it.
7800 is the standard which other groupset/components is compared against.
Brakes hails as the best brake that has superb modulation.
Crank is the benchmark for stiffness and weight.
Shifting for both front and rear is the standard which Campy and SRAM is always constantly trying to match.
Now for the cons.
Crank Hollowtech 2 is light and stiff, but the BB although durable, is not exactly the smoothest.
Front D tends to peel and corrode after a few months.
Shifter cables that is ‘exposed’.
Overall, very good value for money groupset, especially after 7900 was launched.