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Old 07-22-08, 08:34 AM   #1
d2create
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Best tail light to pair with Lumotec IQ Fly?

I just installed the IQ Fly and OMG, so that's what it's like having a REAL light!
Took 5 minutes to plug into the Shimano DH-3N71 hub and I was off for a test ride last night. Works perfectly and lit up the road in front of me very well. It was almost like riding my Vespa! It even emits light to the sides which was kinda cool. But I'm most excited about not having to charge my Vega light all the time or being worried about the light dying on me mid-ride.

It has the ability to run a tail light and I was wondering if I should get one instead of my planet bike blinky, and if so, which one should I get. The only thing I'm not all that crazy about is running the wiring from the front of the bike to the rear(aesthetics). What do you think?
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Old 07-22-08, 10:29 AM   #2
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I run the DToplight XS, and like it a lot paired with the IQ Fly. Perfect combination.

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Old 07-22-08, 09:29 PM   #3
d2create
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Yeah, that's the one I was looking at.
What's the clear part in the middle?

I guess this is pretty much my only/best choice?

Thanks!
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Old 07-28-08, 05:51 AM   #4
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DToplight XS

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Originally Posted by d2create View Post
What's the clear part in the middle?
The clear part in the middle is the LED, which is red. The two red pieces on the sides are reflectors. It is quite bright, but not as bright as the PB SuperFlash. Still, it is pretty great.

Joey French
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Old 07-28-08, 06:33 AM   #5
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I prefer a blinkie as a taillight. It will not go out when stopped. 2 AAA Batteries power it for 100+ hours. I use a second amber blinkie on front for the same reason making me visible to oncoming traffic while stopped at intersections. I almost got run over once by a left turning cager cutting across my lane as I was also going to make a left turn myself.
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Old 07-28-08, 06:37 AM   #6
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I prefer a blinkie as a taillight...
You should run a steady light along with blinking lights to enhance tracking. The blinking light attracts attention, while the steady light keeps you visible.
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Old 07-28-08, 09:56 AM   #7
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The DToplight XS is nice, but make sure you get the Plus version with a standlight. B&M also makes a couple of fender-mount tail lights if you don't have a rack to mount it on.

I don't find that the wiring looks that bad. You can wind the wire in a spiral around your brake cable and it comes out fairly clean.

The only bad thing about a generator tail light are the weird little plugs you need for the end of the wire. They're a pain to deal with, and can't be reused if you have to redo the wiring for whatever reason. It's also hard to find replacements, so I recommend buying a bunch of spares along with your light.
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Old 07-28-08, 09:59 AM   #8
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I put a standlight on the back.
Don't see it as an "either/or" thing (generator taillight vs blinkie), and since the option is to run a resistor across the taillight plugs to deal with a 3W supply to a 2.4W light... Figured I might as well run a wired taillight.
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Old 07-28-08, 10:50 AM   #9
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So how do you get the wire from the frame of the bike to the rear of the fender if doing a fender mount light???
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Old 07-28-08, 12:35 PM   #10
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I like to run a strip of reflective tape down the center of the rear fender, so I just put the wire under that.

In the past I've also run the wire along the inside of the fender -- drilling a small hole in the fender near the brake bridge to feed the wire in, and another right above the tail light for it to come out. Then I glued the wire in place inside the fender.

I had trouble with the wire coming unglued, though.
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Old 07-28-08, 02:23 PM   #11
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Supernova makes a 0.6V wired tail light with 3 LEDs, and it's on a rear rack mounting bracket. (Fits racks with 2 hole mounting on the rear) It's pricey, but it's 180-degree visible (according to brochures) and works with the standlight circuit on your headlight so you don't "disappear" when you stop rolling.
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Old 07-28-08, 09:11 PM   #12
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Quote:
Originally Posted by joeyfrench View Post
The clear part in the middle is the LED, which is red. The two red pieces on the sides are reflectors. It is quite bright, but not as bright as the PB SuperFlash. Still, it is pretty great.

Joey French

Thanks for the comparison. Just a precision however : when you say the DToplight XS is not as bright as the Planet Bike Superflash, is it when you compare the latter in steady mode?

Regards,
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Old 07-29-08, 08:59 AM   #13
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Quote:
Originally Posted by n4zou View Post
I prefer a blinkie as a taillight. It will not go out when stopped. 2 AAA Batteries power it for 100+ hours. I use a second amber blinkie on front for the same reason making me visible to oncoming traffic while stopped at intersections. I almost got run over once by a left turning cager cutting across my lane as I was also going to make a left turn myself.
This is the concern that I have had with this type of setup-is it possible to wire a battery into the system that charges off the genhub so that you have juice for heads and tails when stopped?
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Old 07-29-08, 09:10 AM   #14
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This is the concern that I have had with this type of setup-is it possible to wire a battery into the system that charges off the genhub so that you have juice for heads and tails when stopped?
If you use a standlight model headlight (like the IQ Fly), it will also power the tail light when you come to a stop. It cuts your standlight time in half usually, but how often do you spend more than 2 minutes at a stop light?
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Old 09-03-08, 02:21 PM   #15
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Since there was discussion of the Busch & Muller DToplight in this thread, I just wanted to let everyone know my co-author at AustinBikeBlog just did a review of the Senso version of the light here: http://austinbikeblog.org/?p=550.
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Old 09-03-08, 04:02 PM   #16
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Quote:
Originally Posted by d2create View Post
I just installed the IQ Fly and OMG, so that's what it's like having a REAL light!
Took 5 minutes to plug into the Shimano DH-3N71 hub and I was off for a test ride last night. Works perfectly and lit up the road in front of me very well. It was almost like riding my Vespa! It even emits light to the sides which was kinda cool. But I'm most excited about not having to charge my Vega light all the time or being worried about the light dying on me mid-ride.
How does the light compare to the L&M Vega? Is it much brighter?
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Old 09-03-08, 04:09 PM   #17
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How does the light compare to the L&M Vega? Is it much brighter?
Oh yes. Well, the Vega was pretty darn bright. But this thing actually lights up the road well enough to see by, not just be seen. Plus I used to have to charge the Vega every other day and that was using it on blinky mode. The lumotec stays on solid and of course no charging. It produces a great beam of light directly in front, and then it lights up (to a lesser degree and in a funky broken up pattern) a big span 180 degrees. I love it.
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Old 09-03-08, 04:42 PM   #18
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to answer the 2 month old question about the possibility of charging a standlight with the dynamo system, i think the standlights are driven with a capacitor (or something) that is indeed charged by the hub. nice. (feel free to point out how wrong i am if you know better, but i think that's what i remember reading.)

funny thing -- i was just about to call peter white cycles and order my wheel, hub and lights. i checked his website last night and see that he's not shipping any wheels from 9/2 to 9/23 since he'll be on vacation. what's the date of the time change this year?
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Old 09-03-08, 06:51 PM   #19
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I just ordered my IQ Fly with standlight. The bike it is going on has a 2.4v generator hub (EU spec DH-2R30-E) Not sure if I can run a tail light off of it or not, but I currently have a very nice Spannigia Vector Xb battery taillight that is rack mounted and use the PB Superflash mounted up high on the seat post. So far it has proved very effective. Spannigia also makes the Vectra in a generator powered version. The one I have runs for several months on a set of batteries, it also uses the AA which are readily available.

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Old 09-03-08, 06:58 PM   #20
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to answer the 2 month old question about the possibility of charging a standlight with the dynamo system, i think the standlights are driven with a capacitor (or something) that is indeed charged by the hub. nice. (feel free to point out how wrong i am if you know better, but i think that's what i remember reading.)
Yes, the stand light is definitely powered by the hub. It only takes a minute or two of riding to give the stand light enough juice.
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Old 09-03-08, 08:26 PM   #21
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Originally Posted by d2create View Post
Yes, the stand light is definitely powered by the hub. It only takes a minute or two of riding to give the stand light enough juice.
I have the IQ Fly Senso Plus with D Toplight powered by the hub. The standlight for both front and rear seem powered after a matter of seconds. I roll the bike 30 metres to the elevator in my apartment block,and both lights stay on while I'm stationary in the lift. The B&M halogen front light I used to have took a minute or two of riding to charge the standlight, but the LED front light of the IQ Fly seems to remove even that delay.
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Old 09-03-08, 08:33 PM   #22
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Ya, cool. I hadn't really paid that much attention, i just know that it pretty much always works.
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Old 09-08-08, 08:16 AM   #23
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Sorry I didn't reply earlier, the DToplight XS does not flash, so it is not as eye catching as the PB Superflash. With the SF on stationary mode, the XS is almost as bright as it is.

Don't worry about the standlight, it works flawlessly. I regularly ride home, take a shower, and come out to find the standlight still shining. It will charge fully in very little time and distance (I would say less than a minute).
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Old 02-06-09, 03:40 PM   #24
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Your IQ Fly lights - are they securely mounted to the bike once installed, or easily stolen? I asked this over in electrics/lighting but realized I might get a better answer from someone with the actual light I'm hoping to use.
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Old 02-06-09, 07:44 PM   #25
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My IQ Fly light is secure based upon the fact that given an hour and the tools I used to install it, I don't think I could remove the bolt thru the fork crown that my front fender *and* IQ Fly mounting bracket are attached to.

EDIT: realizing this may not make sense. I'll try to take a picture tomorrow, also b/c I'm looking for alternate mounting suggestions.

My rear Toplight XS is not so secure, but I don't leave my bike hanging around all that often, and it would require tools. If somebody steals my rear light I'll be surprised, and sad.

To the Toplight non-blinkiness point above, I run a pair of PB superflash in blink mode on either side of the Toplight. I'm hard to miss.
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