Enter Shimano and the workhorse group in their line up. The trusted XT. They have since released pricing on the XT Di2 but honestly can't see the need for electronic shifting on any of my bikes so far.
The parts I put on are the XT crank with a 32 ring, the 11/46 cassette, XT rear der and shifter and the e13 xcx chain guide.
I was concerned about the chainline and rubbing as this seems to be the complaint for people running guides. e13's mounts between the frame and bb and comes with spacers to shim if needed. Mine went on with the 3 mm spacer and on either end of the cassette there is more than enough clearance.
Have about 6 rides on it so far and I am liking it a lot. The only place I think I will miss the rings is on the road or on long downhills as you will spin out but the flip side of that is getting up the hills and I was fine on any trail so far. One thing to note if your running bar lockout or levers the shifter has a gear indicator window that is quite big and there is a replacement dummy plate that will be released in a few weeks by Shimano for a few bucks. I guess people realized bar real estate is key.
