Garth, the 2mm wrench goes in from the side, just inside of the dropout, like a spoke. There are three cap head screws that bear on something in there. What this does is allow one to lock the endcap onto the spindle to assemble the hub. I am describing the MI6 hub here. I thought it looked a little flimsy, but one has to keep in mind that the hub has a 15 mm axle in there and commensurate bearings, unlike the Phil road hubs (not sure which comes out better on that). So the screws are well out from the center and would have good purchase.

I assume that this hub should be plug and play and not require roadside care for all but the most heroic enterprises. I reviewed the instructions and one can hammer on new bearings using a pipe or socket to spread the load, so a remote repair would be possible.

In general I have had very little break down on decent quality bikes. I think the LX hubs are pretty bombproof, I just like the upper end candy stuff also. Though my bikes seem reliable, I still like the idea of uber reliability as a goal, though few of us will actually need it. I'm at the lower end of the "I have fallen down and I can't get up" age bracket, so I like the idea of extra reliable stuff