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Tung lin bottle dyno with B&M Lumotech IQ Fly?

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Tung lin bottle dyno with B&M Lumotech IQ Fly?

Old 11-09-13, 02:54 PM
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Tung lin bottle dyno with B&M Lumotech IQ Fly?

I'm looking for an affordable setup for casual night rides on the MUP. I was wondering if running a B&M IQ Fly LED headlight with a cheap Tung Lin 6V bottle generator would be harmful to the light. Peter White says that all of the headlights he sells have overvoltage protection, the Tung Lin dyno doesn't have any overvoltage protection. I plan on running a battery taillight and am concerned that I might fry the light. Also the headlight I'm looking at says it's for a dynohub as it has an on/off switch. Can I just run such a light with a bottle dyno leaving the switch in the on position at all times and just disengage the bottle during the day? I've researched the pros and cons of bottle vs. hub dynos and decided that I'm ok with any shortcomings of a bottle dyno. I figure my proposed setup, if it works, will be a cheap way to test the waters with dyno lighting. I will probably upgrade the dyno at a later date if I find it problematic or lacking. Thanks for taking the time to consider my questions and I look forward to your comments, Mike.
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Old 11-10-13, 01:58 AM
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I am running the B+M light with the bottle dynamo that came with my Golden Pigeon chinese bike.No problems.I too thought i will upgrade the dynamo when it fails,but I am still waiting.Famous last words i know.There is plenty of power for an Led tailight too.Run the battery tailight as a safety backup.
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Old 11-11-13, 06:22 PM
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Originally Posted by Grishnak
I am running the B+M light with the bottle dynamo that came with my Golden Pigeon chinese bike.No problems.I too thought i will upgrade the dynamo when it fails,but I am still waiting.Famous last words i know.There is plenty of power for an Led tailight too.Run the battery tailight as a safety backup.
Thanks for the info. Turns out that the website selling the cheap dynamo was out and they are discontinued. I ended up purchasing an AXA Quattro dyno that is overvoltage protected to run the B&M Fly IQ plus light. I'm really looking forward to hooking it all up and seeing how well it performs. The pictures of the beam on Peter White cylce's website look promising.
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Old 11-12-13, 01:08 PM
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Please take pictures and let us know!
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Old 11-15-13, 11:28 AM
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@noglider: I received the light/dynamo last night and installed it. Planning on riding tonight or tomorrow night. I'll take some pics and let you know what I think.
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Old 11-15-13, 09:20 PM
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Went for a ride tonight and the system worked well. The light is definitely good for the money ($25). It throws a nice rectangle beam pretty far. I set it up so that the beam hits the road at about 6 feet ahead of the bike. The first 5 or so feet of the beam is less bright and the sweet spot is about 12-30 feet ahead of you. The beam continues for at least another 20 feet, though it's not as bright. It definitely throws a good amount of light, it's not crazy bright, but it's sufficient to see while riding at 15-20MPH. The dynamo puts out a sort of high pitched whirring sound, though it's not very loud. The drag is noticeable, but not too bad. If I was planning heavy use, I would go with a dyno hub, but it's fine for recreational use.

Installation was fairly easy after reading the instructions on cantitoe road's website. I definitely needed the canti mount for the headlight. The light with the stock mount would have interfered with the operation of the front brake. For the dynamo, I went with the cantilever boss mount which is much cleaner than the standard mount.

Here's some pics of the setup. There is also a pic from the ride. It doesn't really do the light justice as I'm moving and there is no real frame of reference for distance.



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Old 11-16-13, 04:47 PM
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I have a Lumotec IQ light, too. The rectangularity of the beam is comical, so stereotypically German in its precision. But you're right, it throws a very useful beam. It's a heck of a value. I'm glad the set up works so well for you. What is the total cost?
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Old 11-16-13, 06:54 PM
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Thanks Tom, the total cost was $76 shipped. Not bad for a decent quality dynamo setup. The AXA HR Traction would have added $10 and the Dymotec 6 would have been $20 more. I was leaning towards the AXA HR Traction, but Rose bikes had a bunch of reviews that said the rubber roller wears out too quick. The AXA (Basta) Quattro is pretty much the same only it has a Kevlar drive wheel. Considering my budget was small, I feel I got a good bang for the buck with this setup. Mike

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