Originally Posted by ahultin

I am going to be helping a friend convert his carbon davinci tandem to di2. I have read several of the di2 threads on here and think I have a good direction. The hope is that the di2 will help solve horrible shifting this bike has had since new which would be cheaper than scrapping it altogether. .I have the following parts in my cart and wanted to run it by here to see if we are on the right track. Any help would be appreciated.
Xtr rd-m9050
Xtr rd-m9050
Xtr sc-m9051
Ultegra st-r8050 or st-6870 (bike is caliper brakes but rear is setup to handle disc as well)
Ultegra cn-hg701
CS-hg800 11-34 (hub body is 10spd so has to be 11spd mtn)
Bt dn1101
Sm-btc1 (haven't determined if we can mount internally)
Sm-jc40

Does this look to be the right track?