I am posting this for a friend. He is 340lbs, and he is complaining he keeps breaking wheels. His LBS keeps putting new spokes in, but nothing seems to hold up for him. They keep replacing spokes, and they say they are putting "heavy duty" spokes in. Are there any wheelsets that hold up better than others for a heavier rider? He rides a road bike, so probably something in 700c. Thanks in advance for your help. If there are threads on this, please link me.