I found that the largest sprocket on my XTR hub was too fragile for touring and this resulted it becoming distorted. XTR hubs are not intended for touring but are for competitive racing where lightness is at a premium. XT hubs were ideal but these are now made with smaller ball-bearings and there are reports of breakages. LX are now being recommended as a good alternative as they are rugged and still use the larger ball-bearings.