Originally Posted by LittleGinseng
If your spoke tension is low, your weight shift to the front could be flexing the rim, causing brake shoe rub. Old wheelset? Machine built wheels?
No, I'm positive the brake is not rubbing. I can see it clearly when I lean over the front and there is no rubbing at all.
The wheelset is only about 6 months old. I suppose it could be a bearing issue. I've done a lot of riding in rain this winter. Aren't hubs sealed to protect against the weather?