User submitted reviews
Review by CYinPA
Building up a new road bike, went with Dura-Ace Di2 all over just because I wanted to bling out a bike. Does it do anything different than the cheaper stuff? No, other than it weighs less.
In all seriousness, it works as it should, it's light, it looks good, it holds up well to use, it doesn't need to be a garage queen build where you can't ride it without feeling bad. If you buy stuff like this, use it, don't leave it sit. Enjoy your spending, it loses value so fast you may as well.
Di2 has gotten so fast, it's amazing. And the adjustability via the app is nice and easy. It's sorta boring after that though, it just keeps working and doesn't do anything wrong.
Review by Anonymous
9170 hoods are better, 9270's are a bit too bulky. The brakes are just phenomenal