I posted this over in touring, but I thought it would maybe get some more traction here.
I've been using a shimano DH-3D71 dynamo hub for about a year, and I've been really happy with it. I'm trying to decide whether I should use it for my upcoming pan am tour. I'll be on the road for a year or so, going from Alaska to Argentina.
From what I understand the bearings on one side of the hub cannot be serviced, which concerns me. Is this correct? Should I be worried? Has anyone put 15,000 plus miles on one of these hubs?