Di2: I'm sold.
 

I recently bought a bike with Ultegra Di2 and really like it. But today I like it more. I had to adjust the rear derailleur after the first two months of use. Just a minor adjustment. I had no idea how easy it was. Video on YouTube, work it on the bike, and after two minutes the gears are perfectly centered. No cables, no wrenches, no problem. Just really easy.

I just have to remember to keep the battery charged and I'm good.

:-)

Did you do it via Bluetooth or your PC? I'm changing my battery and D-fly on my road Di2 because it's the older version so I can make adjustments via Bluetooth like my cross bike...

I have a new bike on order with Ultegra Di2. Do you know if it comes with bluetooth compatibility? I have the E-Tube app downloaded and ready to go. I'm just dont know for sure if Ultegra 6870 Di2 is bluetooth capable. My dealer isnt sure either. They said they usually tune it to the rider's preferences at the shop by p.lugging it into the computer.

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You could figure it out by the model of internal battery you have. If it's the BT-DN110 it's the Bluetooth compatible newer style. I don't know a lot about Di2 but from what I've learned you have to have the BT compatible battery plus either the Bluetooth Junction-A or the Bluetooth D-fly unit to be able to update and change settings from your phone, otherwise you are stuck with your PC and you need the cord and software for that...

Ok, Thanks. I'll upgrade whatever components I have to to make it bluetooth if its not already compatible. And Dmanthree, thanks for your opinion. I'm excited to try mine out!

The older EW-WU101 wireless unit is ANT+ only.The newer EW-WU111 wireless unit is ANT+ and Bluetooth Smart.Internal Di2 systems need the newer BT-DN110 battery to work with the new wireless unit. I think there is a new battery holder required for the external systems but could be mistaken.


-Tim-

I'm not anti-Di2 but...
That's probably about how long a minor adjustment to my mech RD takes, and I definitely don't need a wrench.

It is amazing that Shimano doesn’t do a better job getting accurate info out about their products. The EW-WU101 is BT capable and works just fine with the BT-DN110. I have one working with the e-tube app on my Android phone. What you do with it is pretty limited, software updates, shift speed. I haven't seen where you can trim the derailleurs like you can with the computer interface. There is a screen for synchronized shifting but I have Ultegra and v3 is not out yet. Check that, they released it today…time to go play!

So far so good:

Attachment 555453

Shift mode screen doesn't look that intuitive on the phone. I think I'll first go through it on the computer then see how that translates to the phone.

I could make VERY minor adjustments, but if I changed wheels, the tools needed to come out for my older ride.

That's good to know for those considering it.


I am also able to adjust my shifting with no tools in a few minutes using my barrel adjusters, so I'm not sure it is a key selling point. However it is good to know that the electronics don't make things more difficult.

So now you need a computer or a phone(?) instead of a wrench, it's a lateral move at best. Don't get me wrong, I think Di2 is neat, but rationalizing it based on less maintenance than properly set up mechanical is a bit of a stretch.

Agree. A few twists of a barrel adjuster really isn't that much of a hassle. Even if you need to completely re-index and reset the limit screws, that's no more than a 5 minute job if you know what you're doing. Probably more like 2 minutes, and it just requires a multi-tool. I don't see this as an "advantage" of Di2 over mechanical, although there are other aspects of it that are appealing.

Why would you need to make adjustments with changing of wheels, as long as you have the same number of gears? If you do have to make adjustments then it's your wheel and not your RD.

Incorrect.

EW-WU101 is the new external transmitter, the older model is SM-EWW01.

No, you don't need a computer or a phone. You press the "maintenance" button on the bottom of the battery pack and use the levers to adjust the derailleur. It's really, really simple.

Same here!

+1.

I like Di2, but it's a solution to a problem that very few people have.

yeah no going back for me. used di2. now etap. screw cables. a nice setup mechanical will function perfectly but there's no denying di2 is simpler and nicer. not a necessity but a luxury that i love.

once shimano makes a wireless system i'll be all over that.

The Russians, or the CIA, are watching you.

It's still easier to twist a barrel adjuster. ;)

It's been my experience that gear alignment varies based on wheel and hub configuration.

If they are, they're wasting their time.

:lol:

I've done adjustments via barrell adjusters, and honestly, they're very limited. Eventually you'll need to drag out the tools to get it right.

Too bad SRAM had to be a bunch of screwups in the battery design and cap tire clearance. Hopefully Shimano doesn't biff like they did.