What is the hierarchy in shimano?
Tiagra - worst
105
Ultegra
Dura-Ace? -best
Or are there others I have missed?
You got it right
.
Sora is in there as well below 105. I wouldn’t bother with anything below 105 myself. If $$ an issue I think someone is better buying a used Ultegra or 105 bike than new Tiagra or Sora bike…but just my opinion.
There are lower than Sora…head over to WalMart…and in the end…they all work better Sora included than even Dura Ace did five years ago…