TomvdS wrote:
I’ve gone through the whole topic and it’s helped me a lot in installing my own Di2 groupset. For now I’ve gone without the Bluetooth interface, so only way of adjusting the system is via the laptop. There are some things that I’m struggling with a bit:
- I have the single button shifters, so stuck with full synchro. However to get this to function properly working I have to set the buttons have to be set to either shift the RD up or down. Can this be done differently?
- if all buttons are set for shifting the RD, how do I make adjustments on the FD without using a laptop?
I'm glad it was of help, this whole thread was extremely helpful to me and even though I have since sold the bike on a sexy upgrade, knowing how to build the bike up and understanding the Di2 inside and out really helps trouble shooting and doing maintenance in the future.
To be quite honest with you, the bluetooth really only helps me with the data for my Garmin and if I am in a pinch I can whip out the phone and fiddle with the settings, but the computer is like 100x more easy to calibrate and screw around with. The Etube software sucks at least on android and it can crash, which can brick the entire system. TBH just use the hard connection to the computer to do your setting changes if you can.
Yes you are stuck with synchro unless you want to say configure one of the brake buttons to do something else, but tbh synchro is basically the only logical choice for you. TBH on a TT bike its really nice and I only see myself missing the FD control on the weird climbs, which are more location dependent than anything else. For a race scenario the synchro is all you need, the BT helps you know when the FD shift is coming up (but you can anticipate it as well if you are experienced with gearing). You can configure any button however you want though, but with only 4 buttons, 1 on each extension and 2 hands, shifting is really your only option.
Read the Shimano Manual (theres a FD guide to adjustments). I believe the computer is the easiest where you just click to "configure/adjust FD" or something on the computer app and it will let you do it automatically. Otherwise I believe you can use the junction box by doing some button pressing, but I forget as its been a while since I did it; its in the manual. TBH though via the computer is the most simple way, just make sure the FD is installed correctly (lined up and all set wrt bolts being tight) prior to adjustment via computer. Once set its basically set and forget.