The Lumotec Fly is Busch & Müller's best halogen headlight. The body is more robust than the Lumotec or Oval Plus, and the vertical beam adjustment is easily done without tools. The optics are improved, providing a wider beam with a sharper top edge, allowing the rider to aim the beam a bit further up the road without focusing light into the eyes of oncoming drivers. The lens spreads the light wider on the road surface, opening up the path ahead. But the high concentration of the beam at its top edge still helps you see further down the road. The more robust body resists damage when mounted at the fork crown and the fork is turned too far, pushing the light against the frame. While the Lumotec Fly can still be damaged if you push it against the frame too hard, it will take more abuse than any other B&M headlight.