I’m a little tired so here is my earlier reply concerning Di2.
Originally Posted by
ColorChange
The performance of the Di2 is devastating. You simply tap and get a gear, fast, any time, under any conditions. That means full load, front or rear derailleur - or at the same time, cross chained or not, 700 watts or more, or less ... do you get the point? Touch and it's done. That's it. You can't screw it up, even when trying. The closest thing I have had to a mis-shift is taking 1/3 crank to catch the next set of pins and ramps to make the jump on the fd. Operator error still occurs every now and then as I am still getting used to tapping the buttons and am trying to perfect my "left side big ring, right side up two gears" upshift or "left side small ring, right side down two gears" downshift. I do these changes at the same time, one tap left side, two taps right side. Super cool! Since shifting is so easy and reliable, I shift constantly, tweaking my ideal desired cadence.
RD shifting is quieter than RED (almost silent unless the FD auto-trims or your pumping major wattage).
I am now running the RED powerdome 11-26 cassette with good results so far. Shimano claimed 11-25 was the largest rear cog that was compatible. It was so cool to throw the new cassette on the bike, start riding it, hit the trim adjustment button, and within 1 minute of putting on a new cassette, I was dialed in and riding. No tools, no twisting cable stops in the bike stand. Too cool!
It does weigh more but this difference can be reduced by using RED components in some areas. I have heard the RED crank will work as well but haven't tried it.
Is it "worth" the extra money? Not anymore than RED is worth the extra money compared to Force. I'm a techy guy and LOVE it. Seriously, it's that much fun. Other people may not care so much.
You imply that speed of shifting is the primary benefit of Di2. That is simply wrong. The primary benefit is any gear, any time, under any constitutions. In fact, the Di2 has superior reliability compared to Red and Shimano (I haven’t used Campy), in that when I shift, I get the gear I want. With the others, you still don’t always get the right gear because of too short a push or not enough pressure on the shifter, cross chaining, too much load while shifting (especially the fd), etc. Additionally, it takes more mental energy to focus on getting the shift right. Not with Di2, it’s simply tap and forget. Also, barrel adjusters and cables are a thing of the past.
Originally Posted by
patentcad
I am the Schwag Junkie Bar None here, and I have no interest in this stuff. What does that tell you?
It tells me you are no longer the Schwag Junkie King and have been
barred by this one.
