A small contrary view (as Cayote Crazy predicted)..
- Consider auxiliary lights. The standard R1200R housing doesn't have a bulb shield in place, and the HID conversion kits I've seen don't have the anti-glare coating on the end of the bulb. As Cayote mention - this can lead to glare for oncoming traffic. BTDT on an HID conversion on a BMW M3.. and went back to higher output halogen bulbs.
- If you are going to do an HID conversion, I'd strongly suggest not using 6K bulbs, look for "4,300K" bulbs. This is the standard that auto manufacturers use. Despite it sounding like a good idea to go more "white" (which at 6,000K is actually heading toward blue) - your eye is more sensitive to red then it is to blue. If you have any cataract problems - the 6,000K bulb will cause scattering in your eye - which lessens the contrast you can see. Things may look more bright, but the visual information you're processing is actually less, the lack of contrast makes it harder to see stuff in/on the road like debris or potholes. The higher number (blue-r) light will also cause more glare for oncoming traffic. Aiming the light lower to prevent glare problems for oncoming traffic is only partially successful, since some of the glare is coming from the uncoated end of the HID capsule, and simply lowering the beam does nothing to help that. Plus lowering the beam lowers the cutoff from the light assembly, which makes for a shorter beam reach.
Some info on HID colors:
http://www.delonixradar.com.au/hid-xeno ... -chart.php
For lots of good info on why an HID conversion may not be the best idea.. I'd suggest you look at Daniel Stern's website. Here is a link to some relevant info from his website:
http://www.danielsternlighting.com/tech ... bulbs.html and
http://www.danielsternlighting.com/tech ... sions.html - and I'd suggest reading about Daniel Stern to see what his qualifications are.
What does work well on the R12R is higher output (but same wattage) uncolored halogen bulbs. Daniel Stern sells them, as does PowerBulbs.com in the UK (they offer great prices and about 3 day shipping to the US..) The only downside of these bulbs is a shorter lifespan. I have used the Philips and Osram +50 bulbs on other bikes and cars.. but they're a bit rare in the H11 size the R1200R takes. Osram does make one that works:
http://www.powerbulbs.com/product/osram ... -h11-bulbs - do not confuse this with the US made Sylvania "Nightbreaker" - despite Osram owning Sylvania now - the bulbs are not at all the same (not even close.)
OK - why auxiliary lights instead?
- Most important to me - redundancy. If your headlight craps out - the auxiliary lights are still there. Darkness never engulfs you.
- Conspicuity (ie - can they see you?) A pair of auxiliary lights can be used to create a light triangle - making the bike much more visible during daylight hours - especially when the sun is behind you at dawn or dusk. The triangle also makes it easier to judge the speed and position of the bike. "I didn't see you.." is much less likely.
- Aiming - I can aim my auxiliary light to where I really need it. I use Hella FF50 lights mounted on the fork sliders with LumaLink mounts. I'm able to aim these lights to fill in where the headlight doesn't light up (no matter what bulbs you have in it.) The sides of the road are of great interest to me considering the number of deer (hoofed rats) in NJ and the risk of meeting up with one at night. The auxiliary lights DO light up the eyeballs of deer quite well and seem to work to stop them in their tracks (sort of like "jack-lighting" - an illegal way to hunt deer at night.)
A well done HID light - like the one on the K1600GT would be wonderful on the R12R - but due to the complexity of the gyro aiming mechanism (that allows the light to turn into a turn) I don't think the conversion kit will provide the same level of lighting.
FWIW - YMMV - just my ramblings..