Upgrading from a double to a triple crank
I broke my brifter so, I upgraded to a 105 ST-5500 and it is triple compatable. So, I was wondering what would it take to make the front a triple. From what I can tell I might need to change the following:
Is there anything else that would need to be changed. Our would the cost be halfway to a new bike?
Currently I have the following:
Any help would be appreciated.
Triple crankset with compatible triple bottom bracket, both derailleurs.