I did a search on this and came up with 0. The manual is no help either. I cant seen to get my head light down enough. I have what seems to be the light adjustment screw all the way in and the light is in a good position until I sit on the bike. The sag in the rear end seems to point my light up to high while riding. My sag is set at about 3 1/2 (where I like it). I can see telephone poles and the tops of trees better then the road. Any one have some suggestions for me, Trail ridding at night sucks because I have to sometimes dive the front of the bike to see what's next.