Originally Posted by
79pmooney
I have for years wanted to design a handlebar mount with a pivot and a belt that goes around a pulley wheel under the light and the headtube so when you turn the handlebars, the light turns roughly twice as far. In other words, so it illuminates the corner you are entering, not the roadside where you do not want to end up. Still on my to-do list.
Ben
You have just such a pivot. You carry it with you all the time. It even allows you to adjust in the z direction. It's called a neck. Put a light on your helmet (or head) and you can make the beam shine wherever you like. No pulleys needed.