Which groupset for project?

[cyberknight]

Looks like it will have originally come with a Shimano 105 5600 or Ultegra 6600 groupset.

Personally I'd try to pick up 10-speed pieces and build it up from there. @cyberknight just posted up a 10 speed groupset-fitted bike with silver bits. May be suitable? Or the Tiagra 4600 groupset he's stuck up to get you going?

I do now have a spare set of Tiagra 4600 shifters, but the link above includes derailleurs.

the groupset i have is fully functional and was taken off the synapse .

 

[Milzy]

I might go for this and get 165mm cranks which I favour.
Least it’s everything and brand new. It can’t be much heavier than 105 11 speed. You’re saving a sprocket. It has to be lighter than what ever was on it back in the day.
https://www.condorcycles.com/produc...variant=56363230462336&wgc=1518735&wgp=281345

Or
https://ebay.io/m/r8ETCI