Shimano 105 or Ultegra

[aicabsolut]

I definitely agree with that statement, having ridden and worked on all 3.

+1

I tried to tune up a friend's 9 spd Tiagra bike and eventually, I just gave up and said he'd be riding an 8 speed (I could not get the thing to shift into the smallest cog no matter what I did). I did make some big improvements, but ugh, if I had to deal with Tiagra or Sora on a regular basis, I would be very frustrated. 105 is amazing in comparison.