Having a number of high-end shops around here in NorCal, I’ve handled Shimano’s Di2 levers a number of times now (and tried them out in a ride-on demo at the NAHBS a few months back). Definitely my favorite lever feel of anything out there currently.
When I see and feel those levers, though, all I can think is that we are one step closer to a viable, top-end road hydraulic disc option. Looking at the 2011 XTR hydro levers, just drives this home for me:
After all, factor out the bar clamp and lever arm and you’ve got very, very little material left on these. And, assuming that the full extension of the hydraulic chamber there could be shortened a bit for a road application, seems like that could pretty easily be shoe-horned into the existing Di2 levers without much modification. Given how svelte the new XTR disc calipers are as well – and, again, factoring in the smaller size needed for a small-rotor road model – this doesn’t seem all that crazy, does it?