Nice information.. I had adjusted the low beam of my P220 several times so that it doesn't hit oncoming riders in their eyes. I didn't do any calculations though. One night I adjusted the beam, went for a test ride, followed by another adjustment and test ride.. it went on for 40-45mins, and finally I was satisfied.. Now i'll check if my setting are compliant with your calculations.
On a different note, I'm just curious.. How to adjust horizontal alignment of a headlight?


with pics please. So that I can show that to the mechanic.

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