Yes, and the Ergopower 11 Speed are the easiest to mod and overhaul. However the 10 speed brifter would probably work best with two indexes per shift. But it's going to be a fiddle nonetheless to get the appropriate cable pull necessary to correspond with the cog spacing. The positive point is you have a fair amount of margin on each of the 5 speed cogs to make it work. Friction, as opposed to index shifting in the lever is probably still more appropriate way to do it.
There are other third-party brifters too. Such as from Modolo.
IMO if you're after index based shifting at the brake lever controls, do it properly. Get a complete groupset where everything integrated and set-up for you.
Yes, and the Ergopower 11 Speed are the easiest to mod and overhaul. However the 10 speed brifter would probably work best with two indexes per shift. But it's going to be a fiddle nonetheless to get the appropriate cable pull necessary to correspond with the cog spacing. The positive point is you have a fair amount of margin on each of the 5 speed cogs to make it work. Friction, as opposed to index shifting in the lever is probably still more appropriate way to do it.
There are other third-party brifters too. Such as from Modolo.
IMO if you're after index based shifting at the brake lever controls, do it properly. Get a complete groupset where everything integrated and set-up for you.