I am 6'4". I have been riding a mountain bike for awhile to get down to the weight that I am now. Was 350. Recently decided to get into rode biking which I really like. I bought a used twice Trek 1.0 Pilot that has been working well for me. The only concern I have is the wheels. As I was going downhill and around a turn at 30 mph I started thinking if my stock wheels are strong enough or am I going to end up wrecking at some point. My wheels are Alex Alloy with 700C x 28 tires. Anthing to watch out for that would worn of pending failure? should I be concerned or should I look into getting better wheels.