I'm in the process of upgrading my road bike's groupset, since it's quite old now. I don't want to blow my budget so I wish to upgrade as little as I can with the most impact. I currently ride my road Ultegra R6700 10 speed groupset.
So my focus was changing the shifters and rear mec, but keeping brakes, cranks and front derailleur. I was thinking of getting everything from 105 R7000 series, but I'm not sure if it will work. Shimano manual states, that 10 speed and 11 speed groupsets are compatible between each other, on the other hand is there huge change between front derailleur for 10 and 11 speed?
I saw some questions when people wanted to upgrade from 9 speed Sora to 11 speed 105 and most people recommended the whole upgrade.
And if the upgrade is not possible, probably the breaks I can keep, but cranks would needed to be changed and probably bottom bracket as well?
Thank you for you answers.