Well I've had my F3s for about a month and a half to two months now. I have almost 2100 miles that have all been great. After riding for 30 yrs on the rode I just had my first accident. A woman turned right into my path and hit me. She crushed my ankle with her car between my bike. Aside from that I am ok. I feel this would have neen much worse if I was on 2 wheels. I have a long rode ahead of me. I don't know what the shape of my F3s is but I will worry about that at another time.