I asked this question on another thread but figured it was different enough to start this.
I have an ‘18 Salsa Vaya Tiagra. I also have recently pulled my Ultegra 11-speed groupset off of my Diverge to upgrade the bike to Di2. Can I easily upgrade my Vaya to 11-speed (bike shop doing the work.)?
My Diverge had RD-8000 rear derailleur and a braze-on front. The front chainrings will be exactly the same and I’m planning to match the rear cassette (11-34). The Vaya has 135mm Formula q/r rear wheel. The local bike shop thinks I will not need a new freehub.
Am I close to having the right pieces? The freehub was my first question and second, can I use my current front derailleur?
The shop doing the work should be able to easily confirm. But yes, there is no reason that a 11 Ultegra shifters and deraileurs shouldn't work on your Vaya, provided you get a new cassette. You should be able to reuse the crank on the Vaya. And can likely use the front derailleur from the Vaya or get a clamp to use your braze on derailleur from the diverge.
Thanks! I was doing some research so I could have all needed parts on-hand (trying to minimize downtime), and thought I'd need a new free hub, but then when I read lots of Shimano MTB free hubs are 9/10/11, that made me think my Vaya might be all set.
