Wheel help: Drive side brake rub

[climbwalz]

I have a set of Rolf Prima Vigor Alpha wheels. If I put any weight on my drive side pedal, even just standing and coasting, the rear brake will rub. I have roughly two credit cards width between the pad and the rim, so a fair amount of space. I am 175 lbs so heavier but not huge. Any thoughts or direction on what to do would be great.

Thanks for the help.

[eric]

2 credit cards is not much clearance.

Make sure the brake is centered.

[Svetty]

Hub or freehub bearings worn resulting in play?