I am new to biking-I have been riding a mountain bike for 2 years and I am looking at flat-bar road bikes or hybrids or fitness bikes,,they seem to be called all three ..I like the trek Fx7.2 or 7.3 ..My question is do thinner tires get more flats? Casual cyclists have told me that, but bike shop owners have not. I want the opinion of more experienced riders.