After deciding to hang-up the road bike after a nasty accident while riding involving an SUV, I've decided to get a cross bike and more or less limit my riding to mixed trails. Cross racing is also a possibility in the future. My road bike frameset was destroyed in the crash, but the Shimano Di2 (electronic) groupset came through mostly unscathed. My question is whether or not Di2 is overkill for cross (with future racing in mind). I'm not sure how well it would do with the dust and mud, but did read recently that some of the pros in Europe are starting to run Di2. I also realize that I'll have to change the crankset to something for cross-friendly. The other option is to try and sell the Di2 components, which probably will pay for a new groupset, wheels and then some!