I weigh in at 170, and have had no problems with the wheels remaining true. They are still perfectly true after riding on them since mid summer.
The hubs have loosened up, and I got two 17mm cone wrenchs to tighten up the rear one. I adjusted it once, and I need to do it some more. I hope to do that this weekend. The rear wheel is your standard bearing arrangement. Pretty simple arrangement.
The front wheel also loosened up and is a completly different beast than any other hub I have ever seen. Basically, you remove the front hub by putting in two 5mm allen wrenches in where the quick release skewer goes, and unscrewing them. Once you do that, you find a long Al axle connecting each one, and two small sealed bearings that go on the outside of the hub, with the axle going through the center. Not sure you can picture how this works, but it is an innovative design.
So the front hub has no way to adjust the play. The problem of a loosening hub stems from the basic design of wedging these sealed bearing into the plastic hub body. If that fit becomes loose, the the hub seems loose. But because the bearing are sealed, the bearings are not loose, just what they fit into. My plan is to put some tape around the bearings and push them into the hub body. I think this will eliminate the looseness. I'll let you know how it goes.
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