Yes, very streetable and yes they are DOT approved.
I got fantastic service and the tires work great for us.
I just cannot understand why M&H puts such a large cross sectional number on the sidewall....these are the size of most others' 275 mm tires but they say 325 mm.
I bought a set of 275-55-16 M&H Drag Radials and they too were smaller than the sidewall markings. They look like 255 mm BFG size. Check out the photos below.
I love the tires, I just wish they were wider.
