Wtb Di2 Dura Ace group

[tss4420]

I'm looking for 10spd, 11 spd is good too, almost complete group. Don't need the brakes but will take them if it needs to go w the group. Would prefer Dura Ace if anyone is looking to get rid of some stuff.

[nyskirat]

Check out weightweenies, slowtwitch, pinkbike, etc. you can easily find some 9070 stuff.

[Dee Hubbs]

You don’t want Dura Ace 10spd. The first generation DuraAce 7970 is a totally different system to the current e-tube software. Parts don’t exist anymore and it’s not comparable with any of the other Di2 stuff.
Ultegra 6770 10spd has many compatible components with the current 11spd lines.
Ultegra 6870 11spd is cheap and easy to find used.
DuraAce 9070 11spd is also cheaper and on the used market.
Ultegra Di2 R8050 is 1 year old
DuraAce Di2 R9050 is 2 years old

The battery is the main brain, and older group batteries can’t be upgraded for modern features like syncroshift or Bluetooth connectivity.
Shifters are just like a computer mouse, they don’t care how many times you click and they don’t determine the number of gears on the derailleur, the derailleur does so you can mix older 6770 shifters with 11 speed RD.

[tss4420]

Great info. Thanks for the help.