Hails, I recently ordered a Mavic 819/XT wheel set. Everything I have heard about the 819 is positive, on the downside I did some research on the XT m756 hubs and they are a tad on the heavy side adding about 100+ grams per wheel compared to the Mavic crosstrail setup. When I placed my order for the 819's there was one set left but after talking to the online
bike store I find they are on back order now for 2 weeks. Rather then view this as a negative it has given me time to do a little research. I can purchase the in stock crosstrails for another $125. Is it worth the upgrade? $125. for half a pound ain't bad value.