Originally Posted by
SethAZ
Then the Tiagra lovers come out of the woodwork.
You say that like its a bad thing
I do have to say that I'd found 4500 and 4600 series of Tiagra to be kinda meh. The 4700 series I feel like they kept 10sp to justify having 105, it really is a good group.
As others have mentioned the jump might not be that significant or worthwhile unless there's something about the new bike that adds to the value it has for you. Often 1000 in the US gets you a tiagra equipped aluminium bike while a 2000 can get you a carbon frame with a 105 group but the same cheap wheels, tires, and add ons of the 1000 bike. To me that can be a worthwhile improvement that will be noticeable and a reasonable jump. Probably won't make you faster in the greater sense but a nicer ride and an extra gear for better shifting. After 2000 is when it starts to be a question of what upgrades will make it better. Its once you hit that carbon frame with 105 that the differences can become even more marginal but my opinion is colored by the fact that really have a low opinion of aluminum road frames, others might not care.