I noticed the same thing. When riding on a tree-lined road I noticed that when I switch to high beam, I get a lot less light on the road and more light up in the trees. When I took the 'Bird in for it's first service, I asked them to check the headlight alignment. I can't tell any difference. I agree that the reflective signs light up further away on high beam, but the road sure doesn't. The road gets darker. I guess I'm gonna have to put some accessory lights on it.