My bad...was not DI 2...in fact was a Ultegra mechanical triple with the 11-40 and the rear XTR........it is interesting as I was always advised the XTR would not work on the 10-spd, but his worked without a problem.....the upside with the 11-40 according the the captain was that there was more range in the middle to upper cogs......though he did not get a chance to utilize anything over 28....our max grade was only 4%.