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  1. #1
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    Fork crown light mounting adapter options?

    Recently purchased the B&M Ixon IQ Premium online; despite the positive reviews everywhere, I've been less than impressed with its brightness in pitch black or rainy conditions.

    Saw a Fenix BC30 in a specialty battery store I frequent today while I was picking up batteries; it has four outputs from 200-1200 lumens, plus an 1800 lumen "burst" for those especially dark patches. Only $100 (plus specialty batteries), so figured I'd give it a go. Did a little test in the alley behind my house; it's impressively bright, but standing in front of it looking back at my bike, I became worried that with it on my handlebars it may blind approaching drivers/riders.

    I'd like to mount it on my fork crown in hopes that its lower position will let me light up the road with less chance of blinding people; unfortunately Fenix doesn't seem to sell fork crown mounts; just the handlebar mount.

    There's the possibility of using the Topeak BarXTender dropping down from my stem (see attached image), but it just doesn't seem as elegant.

    Any thoughts on fork crown mounting systems?


    Screen Shot 2014-10-23 at 10.57.32 PM.jpg

  2. #2
    contiuniously variable TransitBiker's Avatar
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    Are you sure it's on high? It has a low & high setting.

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  3. #3
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    Quote Originally Posted by HydroG33r View Post
    Recently purchased the B&M Ixon IQ Premium online; despite the positive reviews everywhere, I've been less than impressed with its brightness in pitch black or rainy conditions.

    Saw a Fenix BC30 in a specialty battery store I frequent today while I was picking up batteries; it has four outputs from 200-1200 lumens, plus an 1800 lumen "burst" for those especially dark patches. Only $100 (plus specialty batteries), so figured I'd give it a go. Did a little test in the alley behind my house; it's impressively bright, but standing in front of it looking back at my bike, I became worried that with it on my handlebars it may blind approaching drivers/riders.

    I'd like to mount it on my fork crown in hopes that its lower position will let me light up the road with less chance of blinding people; unfortunately Fenix doesn't seem to sell fork crown mounts; just the handlebar mount.

    There's the possibility of using the Topeak BarXTender dropping down from my stem (see attached image), but it just doesn't seem as elegant.

    Any thoughts on fork crown mounting systems?


    Screen Shot 2014-10-23 at 10.57.32 PM.jpg
    1. Whether you're blinding somewhat or not is quite a controversial subject, but with a wider beam light I don't think it makes that much of a difference whether it's on the bars or at the fork crown. The distance isn't entirely huge. I don't know much more on mounting it by the crown that you would find in a google search unfortunately.

    2. If you wanted more light, in my opinion, a better option would be to put out more light with 2 lights. The link you had for the Fenix listed it as $150 I think? You could buy a second Ixon Iq Premium, it would make the light twice as bright.

    3. There's a lot of things I love about the Ixon Iq Premium (I own one) - the battery life, the beam pattern, the even distribution of light in the beam pattern with no hotspot, and the cutoff. The one thing that isn't necessarily great is the purplish light that the LED they chose to use puts out. I can definitely see how it could become a definite problem if it was raining.

    There is one other shaped beam light with a cutoff that I know of - the Phillips Saferide. It has some drawbacks - it's beam isn't quite as wide so for sharp corners you have to slow down a bit (not regular corners, but really sharp ones isn't quite wide enough to light up). It's battery life is much shorter at more like 1:50 on high, then some more on low or about another 30 minutes on high after that with good batteries.

    But it's beam is slightly brighter on the road, and more importantly, the color temperature (or color index) that the light puts out is much, much more normal. It's not nearly as purplish as the Ixon Premium, and I also own a Saferide, and think it would be a much better bet for being able to see in the rain.

    P.S. Almost any light works in pitch black conditions, those are the best for a lower powered light. The worst conditions are dark gaps between streetlights, rain on black pavement, and any time there are lights in your face that are not lighting up the ground in front of you.

  4. #4
    aka Tom Reingold noglider's Avatar
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    I have a B&M Ixon Core, which also has a shaped beam. I might not describe it as outstanding, but I like it. It sounds like the Premium is better. The color of the light seems white to me. It charges on USB.
    Quote Originally Posted by noglider
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  5. #5
    Senior Member corwin1968's Avatar
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    I've got the Ixon IQ and although it didn't live up to it's hype, I'm pretty happy with it. I wish it had a wider beam because on really dark sections of road I'm going into curves blind due to the forward-focused beam.

    I found that on my bike, the fork crown mount simply will not work unless one has a vice, the tools and the mechanical aptitude to seriously reshape it. No matter how the stock mount is set-up, it's pushing on the V-brake cable and affecting the brakes. I blame the bike designer more than anything for putting a 375mm fork length on a bike they designate as having clearance for 47mm tires. It should have been closer to a 400mm fork and then the light mount would have worked fine.
    Currently riding a custom built 1x9 Surly Karate Monkey. Dreaming of a 26" wheel build, either an 80's MTB or a Surly LHT.

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    coprolite fietsbob's Avatar
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    Many are designed [Beam Pattern] to be mounted just above the front Mudguard.

    IQ shaped Beam is also part of the Schmidt eDelux, I have 2 .. both, are at about 30" off the ground .
    (a height that is OK when I wear my Cycle Rain Cape. it does not drape over the light)

    The trekking bike [Linked to before) has a Tubus hooped Lowrider rack , and a suspension fork
    The mount bought Thru the importer, is on the same bolt as the Mudguards, on the fork arch.

    Another, also touring rig, I have a braze on (& Powder Recoat) it has a Paul's Machined 1" tube fitting
    Bolted on it, to put the handlebar mount for the light there, Battery powered, for the shorter term needs of Summer touring ..
    Last edited by fietsbob; 03-06-15 at 09:21 AM.

  7. #7
    Senior Member kingston's Avatar
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    I use an XLAB Aero Computer Mount on my fork crown. I have a section of one of those rubber bracelets everyone used to wear as a shim and it works great for my ixon iq.

    Occasionally I will attach the topeak bar extender to the computer mount so I have enough room for two headlights
    IMG_20131020_073435_232.jpg

  8. #8
    Senior Member curly666's Avatar
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  9. #9
    contiuniously variable TransitBiker's Avatar
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    Still curious as to if the light was on low or high.

    - Andy
    I can't wait for the next pint of good chocolate milk after a long ride.

  10. #10
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    Quote Originally Posted by kingston View Post
    I use an XLAB Aero Computer Mount on my fork crown. I have a section of one of those rubber bracelets everyone used to wear as a shim and it works great for my ixon iq.

    Occasionally I will attach the topeak bar extender to the computer mount so I have enough room for two headlights
    IMG_20131020_073435_232.jpg
    I **really** liked how you mounted 2 headlights under you handlebar bag. I looked at the XLAB Aero Computer Mount and the topeak bar extender and I can't figure out how you accomplished this. Am I missing something?


    Please advise.




    Thank you.




    Gunter

  11. #11
    Senior Member kingston's Avatar
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    Quote Originally Posted by gunterw View Post
    I **really** liked how you mounted 2 headlights under you handlebar bag. I looked at the XLAB Aero Computer Mount and the topeak bar extender and I can't figure out how you accomplished this. Am I missing something?
    See in this picture how the XLAB mount attaches to the fork crown?


    Instead of attaching the light directly to the XLAB mount as I have in this photo, I attach the Topeak extender to the XLAB mount, which gives me enough space to attach two lights. Make sense?

  12. #12
    coprolite fietsbob's Avatar
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    Realize when the street is Wet, the light does not bounce back towards your Eyes, like it does when the pavement is dry ..

    then you may want to turn your light Down to light closer to You..

  13. #13
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    Quote Originally Posted by kingston View Post
    See in this picture how the XLAB mount attaches to the fork crown?


    Instead of attaching the light directly to the XLAB mount as I have in this photo, I attach the Topeak extender to the XLAB mount, which gives me enough space to attach two lights. Make sense?
    Yes. That makes sense now. Very creative. How well does it work? Is it stable enough or does it vibrate or move around?

    Thank you for your response.

  14. #14
    Senior Member kingston's Avatar
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    It doesn't move around, but it does vibrate a little. It's a great setup if you want two headlights. I have since replaced the XLAB mount with the B&M fork crown mount, so I haven't used the two light setup in a while.

  15. #15
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    Quote Originally Posted by noglider View Post
    I have a B&M Ixon Core, which also has a shaped beam. I might not describe it as outstanding, but I like it. It sounds like the Premium is better. The color of the light seems white to me. It charges on USB.

    I have that and got the curved black plastic fork mount for my Trek FX. The light won't attach to the bar at a reasonable angle because there isn't enough space for the tightening bolt ring. How do you mount yours?
    1974 Falcon 76 : 1986 Falcon 105 : 1980 Trek 614 : 1985 Ironman Master
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  16. #16
    aka Tom Reingold noglider's Avatar
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    I use the rubber band that came with the light. I'll see if I can get a picture.

    Where can I get that fork crown mount? Link?
    Quote Originally Posted by noglider
    Please email me rather than PM'ing me. Thanks.
    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  17. #17
    Senior Member kingston's Avatar
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    Quote Originally Posted by noglider View Post
    I use the rubber band that came with the light. I'll see if I can get a picture.

    Where can I get that fork crown mount? Link?
    I think this is the curved mount jgcycle is talking about. I have one on my bike with cantilever brakes because I can fit it under the straddle wire, where the wire ones won't fit.

  18. #18
    aka Tom Reingold noglider's Avatar
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    Quote Originally Posted by kingston View Post
    I think this is the curved mount jgcycle is talking about. I have one on my bike with cantilever brakes because I can fit it under the straddle wire, where the wire ones won't fit.
    OK, but that provides a cylinder that mocks the handlebar. If I used that gadget, I would still be using the rubber band the light came with.
    Quote Originally Posted by noglider
    Please email me rather than PM'ing me. Thanks.
    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  19. #19
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    My bad noglider, I use the fork mount for the Ixon IQ.
    I do have the Core also and use the rubber band on the handlebar, it keeps slipping though.
    I did get some sticky pad with the light - I guess I'm suppose to put that on the bars to keep the rubber band mount from slipping.

    Like both lights, the IQ seems to have a slightly bigger spread.

    I'm trying to bend an old stem reflector bracket and make the end a mount for the IQ. A few more tweaks and its not bad. For a vintage bike with quill stem of course.
    1974 Falcon 76 : 1986 Falcon 105 : 1980 Trek 614 : 1985 Ironman Master
    1987 Le Mans RS : 2009 POS : 2012 Trek FX

  20. #20
    RR3
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    I have that BC30 Fenix. I mount it on the lower portion of the head tube just above the bottom HS race using one of those "Nobs"...

    Good light. 200W setting is plenty. the next brightest is very bright (maybe 450 W) and with good Panasonic 16500 batteries, it burns a long time.

    Nonetheless, I prefer the BT20.

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