Originally Posted by
rekmeyata
As a side note, I have two bikes with the newest STI (2013 105) and Ergo (2006 Athena) shifting systems, and I test rode Dura Ace and Ultegra, and none of those shift faster than the SIS did! SIS is just faster for some reason, I push or pull the lever to the next click and bang it's in gear, with STI or Ergo there is a slight delay and a slightly softer engagement, plus with SIS I could shift from first to 7th and bang it's there right now, not so with either of the other newer stuff. In fact my friction Suntour Superbe non indexed shifter shifts as fast as my newer stuff! I'm just saying what i've experienced which I'm sure most of you will disagree, after all how dare the newer stuff be rated below older stuff, it's sacrilege.
I've noticed the same as well. The Dura Ace 7400 system with SIS on my 80's Allez shifts faster than all of the modern groups (DA7900, Ultegra 6700, Sram Force/Red, Tiagra) that I've tried so far. I'm not sure if 7400 actually shifts faster but at the very least the shifts feel more direct. A pull or push on the lever and it's in the next gear without any fuss. I've been thinking of modernizing the group on my Allez to something with integrated shift/brake levers but the direct feel of the 7400 group is giving me pause about the "upgrade".