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  1. #1
    bike rider
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    How to level a Luxos U

    How does one know at what tilt to mount the Luxos U.
    Why is there not a line on the body that is to be horizontal at the correct tilt.
    Do I just go out one night and fiddle with tilt until "that looks pretty good"?
    Please help, it is not an inexpensive tool.

  2. #2
    apocryphal sobriquet J.C. Koto's Avatar
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    Find a flat, level area with a nice, level wall about 7-10 meters away and aim the beam cutoff at about the same height as the lamp itself so the top of the beam is more-or-less parallel to the ground. This will get you in the ballpark and you can adjust up or down a little bit to suit. I have the B&M IQ Cyo Premium and like the cutoff a little bit above this, not so much it irritates oncoming people on a narrow MUP (I've personally asked people if my light was bothering them, which it thankfully wasn't) but enough to throw the light a little further.
    Avid proponent of ISO 8601

  3. #3
    bike rider
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    Is the 'beam cutoff' readily apparent? Is it distinct?
    So far, on the open roads, I haven't really noticed a 'beam cuttoff'. Maybe this is because I haven't been looking, or the lamp is tilted the wrong way. I am guessing the lamp is tilted too far down, because there is much light down in front of me and not much out beyond.

  4. #4
    Senior Member
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    If the light is aimed too low, the beam cutoff is visible as a fairly sharp line (often 5-10 yards in front of you) on a level road. The easy way to aim the light is to leave it just tight enough that you can move it, then adjust it so that line just disappears. At that point, the cutoff is illuminating the "horizon," and the wash will adequately light up most road signs and show oncoming traffic where you are. Once you've found the sweet spot, simply tighten the mount.

  5. #5
    Senior Member
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    Quote Originally Posted by 9606 View Post
    Is the 'beam cutoff' readily apparent? Is it distinct?
    So far, on the open roads, I haven't really noticed a 'beam cuttoff'. Maybe this is because I haven't been looking, or the lamp is tilted the wrong way. I am guessing the lamp is tilted too far down, because there is much light down in front of me and not much out beyond.
    Here's a pic from the similar cyo -


    The cutoff should be apparent if there's something tall and straight that it's pointing at - a wall, or pedestrians. I try to aim mine so the main part of the light doesn't light up their face or chest (to keep the light out of their eyes) but lights up their legs. As high as it can go without getting close to getting into the face of pedestrians or bikers.

  6. #6
    bike rider
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    Wow - mine must be really low.
    I can't wait to get it out some night and adjust it properly.

  7. #7
    aka Tom Reingold noglider's Avatar
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    Quote Originally Posted by 9606 View Post
    Wow - mine must be really low.
    I can't wait to get it out some night and adjust it properly.
    I can't find a dark enough place to do this in the city!
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  8. #8
    Randomhead
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    I use speed limit signs to level mine. You should be able to see the light on a speed limit sign about 200 feet away, but not closer. It's a judgement call
    Randonneuring -- it's touring for people that aren't smart enough to stop for the night.
    It's a wonderful sport when you can make up for a lack of ability with a lack of sleep

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