Originally Posted by
OnyxTiger
Not an upgrade, but I'm certainly not happy with the Tiagra groupset on my commuter. Only ~2K miles in and I just can't get the shifting to last >300 miles without any adjustment. Wish I would've went 105 upfront at least.
There's nothing magic about 105 vs. Tiagra, or any other group for that matter, in regards to staying in tune. What specifically is going out of adjustment for you? Who did the install and has it been double-checked?