Originally Posted by
Boye
I have been adviced to avoid the XT M775 for touring since it uses smaller 3/16" bearing to make room for a lighter, oversized aluminium axle. Bigger bearing will have greater longevity, so you would be better of using SLX or LX hubs if you want centerlock. XT M756 is a great hub, though.
Both the M756 and M775 front hub use 3/16" bearing balls. The M756 uses loose balls, and the M775 uses a bearing retainer for the balls.
http://techdocs.shimano.com/media/te...9830647986.pdf
http://techdocs.shimano.com/media/te...9830621051.pdf