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Old 10-06-2012, 11:06 AM   #2926
stubmw
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Well maybe it's just me, but any design where you need a fan to cool the head light seems kind of ridiculous. More so on a MC that has adventure pretensions.
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Old 10-06-2012, 11:09 AM   #2927
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Originally Posted by stubmw View Post
Well maybe it's just me, but any design where you need a fan to cool the head light seems kind of ridiculous. More so on a MC that has adventure pretensions.
Embrace the future! Anything is better than the frequent halogen bulb outages and broken spring clips, right? LEDs handle vibration very well...I have one on my mt bike.
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Old 10-06-2012, 11:24 AM   #2928
tallguy-09
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34W lo-beam and hi-beam LED?

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Old 10-06-2012, 11:26 AM   #2929
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Well maybe it's just me, but any design where you need a fan to cool the head light seems kind of ridiculous. More so on a MC that has adventure pretensions.
As stated somewhere earlier, the fan does more than cool… it is used to dehumidify and deice the lens by blowing the heat from the chips against it.
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Old 10-06-2012, 11:27 AM   #2930
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Technically, you are correct… however, they show several options under that tab… Akrapovic silencer, another windscreen, various footpegs, etc. So my point remains… they have introduced an element of confusion (at this point in time), by not calling out the headlight options. But, it wouldn't be marketing without such, now would it…
Those are accessories, not options, just as they've always been and are on any other BMW model. You buy them from the parts department.
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Old 10-06-2012, 11:31 AM   #2931
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Originally Posted by tallguy-09 View Post
34W lo-beam and hi-beam LED?
Most probably achieved by the design of the reflector. Two separate, but equal LED's… one concentrated for Hi and the other spread out for Lo.
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Old 10-06-2012, 11:35 AM   #2932
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I thought low beam headlights on all US motorcycles were required to be on at all times. Wouldn't that make the integrated u shaped ring pointless in the states if the low beam light in the housing was always illuminated? The u shaped light is not a a low beam headlight, it's just a daytime marker correct? That might explain the halogen light with non-integrated led daytime running light, it's a way of meeting us regulations, but giving us some led technology.

Ua the Destroyer screwed with this post 10-06-2012 at 11:42 AM
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Old 10-06-2012, 11:36 AM   #2933
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Originally Posted by EJ_92606 View Post
Those are accessories, not options, just as they've always been and are on any other BMW model. You buy them from the parts department.
Well…. I would submit that any "accessory" requiring that BMW install it, could rightly be classed as an option… especially where it replaces a stock item. But you say tomato, I say tahmahto…
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Old 10-06-2012, 11:40 AM   #2934
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A HID capsule and halogen capsule really don't care much how hot they run. Electronics components do. So all that will happen if your halogen capsule operates at 250C air is more light, an led would fail right away. Also, keeping the LED cooler will really extend its life, if you keep it at 100F over 150 F the life is much longer. Good reason to use the fan.

Rod
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Old 10-06-2012, 12:18 PM   #2935
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So we have 2 different DRL's. One nice U-shaped and the other large module below the high beam. Both aren't considered lo-beams, right?

Quote:
Originally Posted by Ua the Destroyer View Post
I thought low beam headlights on all US motorcycles were required to be on at all times. Wouldn't that make the integrated u shaped ring pointless in the states if the low beam light in the housing was always illuminated? The u shaped light is not a a low beam headlight, it's just a daytime marker correct? That might explain the halogen light with non-integrated led daytime running light, it's a way of meeting us regulations, but giving us some led technology.
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Old 10-06-2012, 12:26 PM   #2936
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Just guessed

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28K how did you come up with that?
I don't know. There are at least 5 add on packages and I figured they would cost about $1500 apiece. I'm sure I am wrong but the fact remains that a lot of the stuff that comes standard on the Multi will be added to the base price of the BMW. Don't get me wrong I would much prefer the BMW but I'm not sure I want to bend over that far.
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Old 10-06-2012, 12:28 PM   #2937
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Originally Posted by EJ_92606 View Post
Embrace the future! Anything is better than the frequent halogen bulb outages and broken spring clips, right? LEDs handle vibration very well...I have one on my mt bike.
If we now require cooling/dehumidifying fans on our motorcycle headlights the future seems complex.

I guess as long as it's reliable as an anvil it won't matter.
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Old 10-06-2012, 12:37 PM   #2938
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From the humidity standpoint there is a big difference between putting 55 watts of heat inside the enclosure, to putting about 7 to 10 of the led watts inside and the rest in the heat sinks outside.

I will state that a relay and $12.00 halogen capsule is inexpensive and does a fine job of lighting the road. This difficult to impossible to repair module hopefully will be as reliable as an anvil. I also stand a good chance of changing said Halogen capsule on the road, and it is small enough to carry a spare. I suspect this is not the case for this module.

Beware solutions for problems that do not exist

Rod

ragtoplvr screwed with this post 10-07-2012 at 10:47 AM Reason: fix unclear
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Old 10-06-2012, 12:53 PM   #2939
Ua the Destroyer
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Originally Posted by tallguy-09 View Post
So we have 2 different DRL's. One nice U-shaped and the other large module below the high beam. Both aren't considered lo-beams, right?
Not positive, but that's probably how the us regulations will play out. The US always seems to be behind the times on vehicle illumination. Almost all the german vehicles I've owned have had a different type of headlight than it's european counterpart.
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Old 10-06-2012, 12:54 PM   #2940
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I can't imagine what this bike will cost to maintain and fix when it's ten years old. The freaking headlight has it's own cooling fan!

I wonder if the water pump has it's own water pump? I'm guessing a broken headlight is north of $2k.


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Wow looks like the LED headlight assembly needs an electric motor and fan to cool it....... engineering if so.
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