Road Bike Tire Throwing Rocks I recently purchased a road bike after having ridden a dutch style bike for over a year and a half. The roads that I ride on have the usual gravel and dirt on them but every now and then my road bike goes over tiny pebbles in the road and ends up throwing them (I hear the sound of them bouncing off stuff behind me). Today was the worst because while going very slow I heard a pebble get whacked right in a car at the red light. I apologized and everything but is this normal with road bikes?
Yes, it's normal.

The higher pressure (eg 100 psi, 6-7 bar) of the tires can squeeze stones out quite quickly.

And, yes, sometimes they can hit nearby cars, cyclists, dogs, cats, ... .

Ride on :-)